The atmospheric pressure in Denver, CO is 560mmHg. What is this pressu
O 0.736 atm
633 atm
127 atm
O 760 atm

Answers

Answer 1

The given pressure in Denver is 560mmHg and the calculated atmospheric pressure in atm is 0.73 atm.

What is atmospheric pressure and how to calculate it?

Due to the atmosphere's greater bulk above those places, the pressure it applies to objects is highest around or below sea level. Since the mass of the atmosphere at a certain altitude reduces as it rises, atmospheric pressure also lowers as altitude rises.

A pressure of 1 atm is equivalent to 760 mmHg. As a result, we can use the following ratio to determine how many atmospheres of pressure equal 560 mmHg:

[tex]1 atm : 760mmHg = x : 560mmHg[/tex]

On solving the above equation, we get:

[tex]x = \frac{1atm.560mmHg}{760mmHg}[/tex]

[tex]x = 0.73 atm[/tex]

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Related Questions

If the reactants of a reaction are HCI and NaOH, what could be a product?
OA. NO₂
OB. HC104
O C. Na₂CO3
OD. NaCl

Answers

If the reactants of a reaction are HCI and NaOH, Na₂CO3 be a product.HCl and NaOH are the reactants.

The chemical reaction between being an acid and a base is quite frequent. Water and a binary or ternary salt are the only byproducts of this reaction, which is also known as a neutralization or double replacement reaction.

For this issue, HCl serves as the acid and NaOH serves as the base.

NaOH + HCl →NaCl + H2O.

Neutralization Reactions

A very significant family of chemical reactions known as neutralisation reactions occurs when the effect or action of an acid is neutralised by the a base and vice versa. As a result of their reaction, an acid and a base produce heat as well as salt and water. Water is actually created through neutralisation reactions between the acid proton from of the acid as well as the base's hydroxyl group (H+ and OH- combine to make H2O). The quantities of the person to be taken depend on the amounts of the base and acid.

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The students predict that the reaction will form ions that are more stable and will attract each other. Use the dropdown menus to complete the statements that describe the students* prediction.
After a sodium atom
the chlorine atom, it has a full electron shell. After the chlorine atom
sodium atom, it has a full electron shell. The transfer between sodium and chlorine results in a

Answers

The formation of the sodium chloride would occur when one electron moves from sodium to chlorine.

What is an ionic compound?

We know that a compound is ionic because the compound can be formed by the combination of a metal and a non metal when this occurs, there would be the transfer of an electron from a metal to a non metal. The implication of this is that we would have a pair of ions. On ion would be positively charged and the other ion would be negatively charged.

In the case of the chlorine and the sodium atoms, the compound that is formed here is sodium chloride. The only electron that is found in the outermost shell of sodium atom would be removed and then the chlorine atom would now be seen to have a full shell.

Thus in the formation of the ionic compound, there is a transfer of electrons from sodium to chlorine.

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(c) Copper sulfate is produced during the extraction of copper from the Earth's crust. Copper is produced from copper sulfate solution using iron. The word equation for the reaction is: copper sulfate + iron →→→iron sulfate + copper From the equation a company calculated that 648 kg of copper sulfate are needed to produce 617 kg of iron sulfate and 258 kg of copper. Calculate the mass of iron needed to make 258 kg of copper. Mass= kg (2)



Hellpppppp​

Answers

One mole or 55.8 g of iron is required to produce one mole or 63.5 g of copper. Thus, mass of iron required to produce 258 Kg of copper is 215 Kg.

What is copper?

Copper is a transition metal which is a good thermal and electrical conductor. Copper sulphate reacts with metallic iron forming ferrous sulphate and copper metal as the reaction written here:

[tex]\rm CuSO_{4} + Fe \rightarrow FeSO_{4} + Cu[/tex]

Atomic mass of Fe = 55.8 g/mol

Atomic mass of Cu = 63.5 g/mol

As per the reaction 55.8 g or 0.05 Kg of Fe produces 0.06 Kg of Cu. Thus, mass of Fe needed to produce 258 Kg of Cu is:

= (258 Kg × 0.05 Kg) / 0.06 Kg

= 215 Kg.

Thus, 215 Kg of Fe is required to produce 258 Kg of copper.

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22. What is the central idea of "A Brief History of DDT"?

Answers

The central idea is to combat malaria, typhus, and other insect-borne human diseases among both military and civilian populations.

The full form of DDT is Dichlorodiphenyltrichloroethane.

DDT is an insecticide used in agriculture. The United States banned the use of DDT in 1972. Some countries outside the United States still use DDT to control mosquitoes that spread malaria.

It also was effective for insect control in crop and livestock production, institutions, homes, and gardens. DDT's quick success as a pesticide and broad use in the United States and other countries led to the development of resistance by many insect pest species.

DDT is:

known to be very persistent in the environment,will accumulate in fatty tissues, andcan travel long distances in the upper atmosphere.

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Does anyone have the table for the Calorimetry and Specific Heat lab?

Answers

Answer:

Explanation:

I did the lab

an abc fire extinguisher that uses a dry chemical solution, is suitable for extinguishing electrical fires

Answers

For use with fires involving common combustibles, flammable liquids, and powered electrical equipment, an extinguisher with an ABC rating is appropriate.

Monoammonium phosphate, a dry chemical, is used in ABC Fire Extinguishers to quickly put out a variety of fires by smothering the flames. All three types of fire can be extinguished using this light yellow powder: Paper, wood, and rubbish are all in Class A. Gases and liquids fall under Class B. Oil, textiles, paper, liquid, and electrical fires can all be extinguished with dry chemical fire extinguishers. This is the best fire extinguisher to keep on hand so that you can put out various fires quickly and safely. There are mostly two kinds: ABE The types A, B, and E are handled.

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what is the shortest wavelength line in nanometers in series of the hydrogen spectrum when m=l and n>l? (c=1.097*10^7)

Answers

91.2 nm is the shortest wavelength line in nanometers in series of the hydrogen spectrum when m=l and n>l

What is hydrogen spectrum?

The electromagnetic radiation that a hydrogen electron emits when it transitions from an excited state to a normal state is known as the hydrogen spectrum. The wavelength of the hydrogen spectrum correlates to the energy emitted.

In order to boost electrons to higher energy levels, hydrogen molecules must first be broken into hydrogen atoms (thus the atomic hydrogen emission spectrum). Assume an electron is stimulated to the third energy level. It would probably lose energy once again if it dropped to a lower level.

As we know,

1/λ = R × (z)²× [(1/n₁)² - (1/n₂)²]

Given, it is hydrogen spectrum thus z = 1

and R = 1.097 × 10⁷ m⁻¹

n₁ = 1 and n₂ = ∞

Now,

or, 1/λ = (1.097 × 10⁷ m⁻¹) × (1)²× [(1/1)² - (1/∞)²]

or, 1/λ = 1.097 × 10⁷ m⁻¹

or, λ = 1/ 1.097 × 10⁷ m⁻¹

λ = 91.2 nm

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what is learned it the data from an experiment does not support the hypothesis

Answers

If the results of an experiment do not confirm the hypothesis, some information is still learnt about the hypothesis that is useful.

What is discovered if an experiment's results contradict the hypothesis?

If your hypothesis is not confirmed by the experiment's findings, you should re-examine the data to see why your findings contradicted your hypothesis.

What action should you take if your data contradicts your hypothesis?

The first step you should take after a hypothesis is rejected is to carefully review the data. Afterward, give a possible explanation for why the hypothesis was erroneous using your study and data. Once a cause is identified, your hypothesis may have been incorrect.

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question:-

What is learned if the data from an experiment do not support the hypothesis?

A. Incorrect information; the data were not analyzed correctly.

B. Some information; the data still valuable information about the hypothesis.

C. No information; the data are bad or incomplete.

D. No information; the experiment is not useful.

54.8 L of hydrogen gas is combined with excess oxygen at STP. What mass of water
should be produced?

Answers

The mass of water that should be produced from 54.8 L of hydrogen gas in the presence of excess oxygen at STP should be 36 grams.

Stoichiometric problem

The equation when hydrogen and oxygen gas combine to form water is written as:

[tex]2H_2 + O_2 -- > 2 H_2O[/tex]

From the equation of the reaction, the ratio of hydrogen gas that reacts to the water that is formed is 1:1.

At STP, 1 mole of a gas is equivalent to 22.4 L of the gas. Thus, 54.8 L of hydrogen will be equivalent to:

22.4 L = 1 mol

54.8 L = 54.8 x 1/22.4

            = 2 mol

With moles of hydrogen gas, 2 moles of water will also be formed.

Recall that: mass = mole x molar mass

The molar mass of water is 18 g/mol.

Thus, the mass of 2 moles of water can be calculated as:

Mass = 2 x 18

         = 36 grams

Thus, 36 grams of water will be formed when 65.8 L of hydrogen gas reacts with excess oxygen.

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Determine the mass percentage of carbon, C, hydrogen, H, and oxygen, O, in C₈H₁₆O₂.

Answers

Answer:

C = 67%

O = 22%

H = 11%

Explanation:

Given C = 12, O = 16, H = 1

C8 = 8(12) = 96

O2 = 2(16) = 32

H16 = 16(1) = 16

Total molar mass = 96 + 32 + 16 = 144

% of C = 96/144 = 0.67 = 67%

% of O = 32/144 = 0.22 = 22%

% of H = 16/144 = 0.11 = 11%


The following equation can be used to represent the formation of carbon monoxide from carbon and oxygen
2C+02-2CO
The reaction supports the conservation of mass principle because the

Answers

The reaction supports the conservation of mass principle because the number of atoms of different elements before and after the reaction is balanced.

Law of conservation of mass

The law of conservation of mass states that mass can neither be created nor destroyed during the course of reactions. However, the mass can be converted into other forms during the course of reactions.

This law is extended to atoms and matters as well.

Thus, when you consider the equation highlighted:

[tex]2C + O_2 --- > 2CO[/tex]

One can see that there are 2 carbon atoms before and after the reaction. Also, there are 2 oxygen atoms before and after the reaction.

Thus, the equation is a balanced equation and a balanced reaction supports the law of conservation of mass, matter, or atoms.

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Solid lithium metal and diatomic nitrogen gas react spontaneously to form a solid product. Give the balanced chemical equation (including phases) that describes this reaction.
Indicate the phases using abbreviation (s), (l), or (g) for solid, liquid, or gas, respectively.

Answers

Solid lithium reacts with dinitrogen giving lithium nitride. Where three electrons from lithium is transferred to nitrogen. The balanced chemical equation is given below:

[tex]\rm 6 Li (s) + N_{2} (g) \rightarrow 2 Li_{3}N (s)[/tex]

What is lithium nitride?

Lithium nitride is a brownish-red  colored powder compound formed by the ionic bonding between lithium and nitrogen. Lithium is an alkali metal with 3 electrons with one valence electron.

Nitrogen is a non-metal with 5 valence electron and it needs 3 more electrons to achieve octet. Thus, lithium gives its valence electron to nitrogen. One nitrogen needs 3 electrons thus two nitrogen needs total 6 electrons. Thus two nitrogen atoms bonds with 6 Li atoms as written in the balanced reaction.

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The boiling points for a set of compounds in a homologous series can be qualitatively predicted using intermolecular force strengths. Using their condensed structural formulas, rank the homologous series for a set of alkanes by their boiling point Rank from highest to lowest boiling point. To rank items as equivalent, overlap them.

Answers

The decreasing order for the boiling point will be: CH3CH2CH2CH2CH2CH2CH3 > CH3CH2CCH2CH3CH3 > CH3CH2CH2CH2CH2CH3CH3 > CH3CH2CH2CH3

What is meant by boiling points?

Boiling point can be described as the temperature that is responsible for the conversion of liquid state to vapor state. The boiling point is dependent on the molar mass and branching. As all are alkanes, the force is the same.

As Heptane is the straight hydrocarbon has highest boiling point.

3,3-dimethylpentane has 7 carbon chained branched hydrocarbon, therefore, boiling point increased.

Hexane is straight hydrocarbon but has a low molecular weight, so the boiling point increased further.

As butane has 4 carbon straight chains, therefore it has the lowest boiling point.

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Note: the question given on portal is incomplete. Here is the complete question.

Question: The boiling points for a set of compounds in a homologous series can be qualitatively predicted using intermolecular force strengths. Using their condensed structural formulas, rank the homologous series for a set of alkanes by their boiling point. Rank from highest to lowest boiling point. To rank items as equivalent, overlap them.

a)CH3CH2CH2CH3

b) CH3CH2CH2CH2CH2CH3CH3

c) CH3CH2CCH2CH3CH3

d)CH3CH2CH2CH2CH2CH2CH3

4. A main group element has 81 protons and an estimated nuclear charge of +3. Therefor, the element has ____ electrons and can be on in Group ____ of the Periodic Table.
Which set correctly complete the blanks?
A. 84, 3A
B. 81, 5A
C. 78, 3A
D. 78, 5A

Answers

A main group element has 81 protons and an estimated nuclear charge of +3. Therefor, the element has 84 electrons and can be on in Group 3A of the Periodic Table.

What element has a nucleus with 81 protons?

With the atomic number 81 and the chemical symbol Tl, thallium is one of the elements.

What impacts the human body does thallium have?

When consumed in large quantities, thorium can have negative effects on your nervous system, heart, lungs, liver, and kidney. After being exposed to high levels of thallium for a short time, symptoms like temporary hair loss, vomiting, and diarrhea are possible.

Thallium is regarded as a cumulative poison that can have a negative impact on one's health and cause degenerative changes in numerous organs. The nervous system experiences the most negative effects.

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which of the following solutions contains the greatest number of ions, assuming all these salts dissociate completely? A)400.0 ml of 0.10 m nacl. b) 300.0 ml of 0.10 m cacl2. C) 200.0 ml of 0.10 m fecl3. D) 800.0 ml of 0.10 m sucrose.

Answers

300.0 ml of 0.10 m CaCl₂ of the following solutions contains the greatest number of ions, assuming all these salts dissociate completely.

What are ions simple definition?

An is an atom or collection of atoms where the number of electrons and the number of protons are different. A positive ion, also known as a cation, is a particle that exists when the flow of atoms exceeds the number of protons. Ions are electrically charged particles that are created either by taking electrons out of neutral atoms to make positive ions or adding protons to neutral atoms to produce negative ions. The quantity of protons remains constant during the formation of an ion.

Briefing:

The number of moles in 300. mL of 0.10 M CaCl₂ is:

0.300 L * 0.10 Mol L = 0.030 mol

Each mole of CaCl₂ contains 3 moles of ions (1 Ca²⁺ and 2 Cl⁻). The moles of ions in 0.030 moles of CaCl₂ are:

0.30molNaCl * 3mol Ions / 1 mol NaCl = 0.90 mols

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How many atoms of carbon (C) are in 0.04 g of carbon?

Answers

Answer:

[tex]2.01x10^{21}atoms\ C[/tex]

Explanation:

First, find the atomic mass of carbon (12.01 [tex]\frac{g}{mol}[/tex]).  Then use this value and Avogadro's number ([tex]6.022x10^{23}[/tex]) to convert grams to atoms:

[tex]0.04g\ C(\frac{1\ mol\ C}{12.01\ g\ C})(\frac{6.022x10^{23} atoms\ C}{1\ mol\ C})=2.01x10^{21}atoms\ C[/tex]

Answer the following questions about structure and bonding. (a) Which of the following tetrafluoride compounds is nonpolar? Use Lewis electron-dot structures to explain your conclusions. SiF4 SF4 XeF4 (b) Rank the following compounds in order of increasing melting point. Explain your answer. Lewis electron-dot structures may aid you. SnF2 SeF2 KrF2 (c) Use Lewis electron-dot structures to show why the carbon-oxygen bonds in the oxalate ion (C20%) are all equal. (d) When PCl, is dissolved in a polar solvent, the solution conducts electricity. Explain why. Use an appropriate chemical equation to illustrate your answer. a

Answers

The final equation is PCl3(aq) → PCl4-(aq) + Cl-(aq)

(a) All tetrafluoride compounds listed are non-polar. This is due to the symmetrical distribution of electrons all around the central atom, as shown by the Lewis electron point structure.

SiF4:

F

|

F-Si-F

|

F

SF4:

F

|

S-F

|

F

XeF4:

F

|

Xe-F

|

F

(b) The ascending order of melting points for the listed compounds is as follows:

SnF2< SeF2< KrF2. This is because the intermolecular force increases as the size of the atom increases. SnF2 has the smallest atoms. In other words, it has the weakest intermolecular forces and the lowest melting point. Since SeF2 has slightly larger atoms, it has slightly stronger intermolecular forces and a higher melting point. KrF2 has the largest atom, the strongest intermolecular forces and the highest melting point.

(c) The carbon-oxygen bonds of the oxalate ion (C20%) are all the same as the central carbon atom is attached to her two oxygen atoms and both of these bonds are double bonds . The Lewis electron point structure of the oxalate ion is:

O=C=O

(d) When PCl3 is dissolved in a polar solvent, the solution conducts electricity because the PCl3 molecules in the solution dissociate into ions. The dissociation process is represented by the following chemical formula:

PCl3(aq) → PCl4-(aq) + Cl-(aq)

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co2 extinguishers should never be used in a confined space unless the user is wearing proper respiratory protection, such as a supplied-air respirator (sar) or a self-contained breathing apparatus (scba)

Answers

Sudden increase in carbon pollution poses a threat to anybody utilizing a CO2 shooter in a constrained space. Because oxygen is replaced by Dioxide, an asphyxiant, more rapidly in a tiny space than in a larger one.

Explain what an extinguisher is.

In order to stop a fire from spreading, smoke detectors use a substance to reduce the heat of the flames, smother the fuel, or cut off the oxygen supply. If used by a competent person, a portable fire suppression system may swiftly put out a minor fire.

What kinds of extinguishers are there?

Types of various classes of fire extinguishers. The six primary types of fire extinguishers are wet chemical, water, foam, Carbon dioxide, powder, and water mist.

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How many moles of O2 are needed to produce 1.01 mol of CO2?

Answers

Since oxygen is diatomic in its normal form, it takes two molecules of oxygen to create one molecule of carbon dioxide. The appropriate formula is: C (s) + O2 (g) → CO2 (g).

What is meant by 1 mole?

A mole is 6.02214076 x 1023 of any chemical unit, including atoms, molecules, ions, and others. Given the large number of atoms, compounds, or other components that make up any material, the mole is a useful measure to utilize.

How is the mole determined?

Divide this mass of the substance by its molarity to get how many moles you have. The mass in millimeters of one molecule of a material is known as its molar mass. The atomic unit's atomic weight, expressed in atomic mass units, determines the substance's mass (amu). For instance, one moles of argent has a mass of due to its atomic mass of 107.8682 amu.

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Sodium carbonate is a reagent that may be used to standardize acids in the same way you used KHP in the experiment. In such a standardization, it was found that 0.512 g sample of sodium carbonate required 26.30 ml of a sulfuric acid solution to reach the end point of the reaction.

Answers

0.1825 M is the concentration of H2SO4

To do this, let's write equation again:

Na2CO3 + H2SO4 ---------> H2O + CO2 + Na2SO4

As we can see, equation is already balanced and we can also see that mole ratio between the acid and the carbonate is 1:1, this means that moles of the acid, would be the same moles of carbonate, therefore, we can use the following expression:

M₁V₁ = M₂V₂ (1)

1: Is the carbonate

2: is the acid

To get the concentration of acid, we need to calculate the moles of carbonate used. This can be done using the molecular mass of sodium carbonate, which is 105.9888 g/mol, so the moles:

n₁ = 0.512/105.9888 = 0.0048 moles

Now that we have moles, we can use (1) and calculate the concentration of acid.

We know :

n₁ = M₁V₁ (2)

Replacing in (1) we have:

n₁ = M₂V₂

M₂ = n₁ / V₂ (3)

Now all we have to do is replace values and solve for concentration:

M₂ = 0.0048 / (0.02630) = 0.1825 M

This is concentration (molarity) of the H2SO4

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How many grams of a gas with a molar mass 36.02 g/mol would be required to occupy a 3828 mL flask at 0.97 atm and 81.1 degrees Celcius? Record your answer in scientific notation to 2 decimal spaces.​

Answers

A 3828 mL flask is occupied by 4.89 g of a gas with a molar mass of 36.02 g/mol at 0.97 atm and 81.1 °C.

What is molar mass ?

The mass of a sample of a chemical compound divided by the quantity, or number of moles in the sample, measured in moles, is known as the molar mass of that compound. The molar mass of a substance is a bulk attribute rather than a molecular one.

Step 1. Convert 81.7 °C to Kelvin.

We will use the following expression.

K = °C + 273.15

= 81.1 + 273.15

= 354.9 K

Step 2. Calculate the moles of the gas.

We will use the ideal gas equation.

P × V = n × R × T

n = P × V / R × T

n = 0.97 atm × 3.828 L / (0.08206 atm.L/mol.K) × 354.9 K

= 0.136 mol

Step 3. Calculate the mass of the gas.

The molar mass of the gas is 36.02 g/mol.

0.136 mol × 36.02 g/mol

= 4.89 g

Thus, A 3828 mL flask is occupied by 4.89 g of a gas with a molar mass of 36.02 g/mol at 0.97 atm and 81.1 °C.

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The required mass of the gas is 4.61 g.

What is ideal gas law?

The equation of state for a hypothetical ideal gas is known as the ideal gas law. Despite its many flaws, it is a good approximation of the behavior of several gases under various circumstances.

Given that the volume of the gas: V = 3828 mL = 3.828 L.

Pressure: P = 0.97 atm.

Temperature: T = 81.1 °C = (273+81.1) K = 354.1 K.

Then from ideal gas equation: PV = nRT

Where: R = universal gas constant = 0.082 atm L/mol.K

Required amount of gas: n = PV/RT

= (3.828*0.97)/(0.082*354.1) mol

= 0.13 mol.

Hence,  for a gas with a molar mass 36.02 g/mol, the mass of gas

= 0.13 mo l* 36.02 g/mol

= 4.61 g.

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Assuming an efficiency of 45.10%, calculate the actual yield of magnesium nitrate formed from 120.0 g of magnesium and excess copper(II) nitrate.

PLEASE HELP!!

Answers

According to the concept of percent yield, the actual yield of magnesium nitrate is 334.41 g.

What is percent yield?

Percent yield is defined as the ratio of actual yield to the theoretical yield multiplied by 100. If the actual and theoretical yield are same then the percent yield is 100%.If actual yield is less than the theoretical yield then the percent yield is less than 100%.

In cases where percent yield is over 100% it indicates that more sample is recovered than the predicted amount.This condition arises when there are other simultaneous reactions taking place leading to the formation of product. It can also arise if there is incomplete removal of impurities from the sample .

In order to obtain actual yield formula is, actual yield=percent yield×theoretical yield/100

In this case, theoretical yield is , as 24 g magnesium produces 148.3 g magnesium nitrate , 120 g magnesium will produce 741.5 g magnesium nitrate.

∴actual yield=45.10×741.50/100=334.41 g

Thus, the actual yield of magnesium nitrate is 334.41 g.

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A meteorologist noticed a strong low pressure system (yellow circle in this image) moving into the state of California. What is the most likely forecast for California?
A. clear and calm
B. drought conditions with sunny skies
C. windy with rainy conditions
D. several days without rain or wind

Answers

Option(A) clear and calm  is the most likely forecast for California.

What is forecasting in climate?

Climate predictions anticipate weather averages and other climatic features from a few weeks to a few years in advance. Forecasters are increasingly making such predictions using detailed models of the Earth's climate system.

How would you describe California weather?

The majority of California has a Mediterranean-like climate, with warm, dry summers and moderate, rainy winters. The typical daily high temperature on the coast is approximately 70°F and higher, but can occasionally reach 80°F or more on the warmest summer days; freezing temperatures are uncommon, even in January.

Hence Option(A) is a correct answer.

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Part 2 out of 2 Now consider the stereochemistry in the reaction below: на нь Meo DMSO heat Select the answer choice below that correctly picks the appropriate hydrogen to remove in this reaction as well as the correct reasoning for this choice. O Hb is removed because it is anti-periplanar to the leaving group C1O It doesn't matter whether Ha or Hb is removed as both will lead to the specified product O Ha is removed because it is syn-periplanar to the leaving group CI O ) Ha is removed because it is anti-periplanar to the leaving group CI O Hb is removed because it is syn-periplanar to the leaving group Cl

Answers

According to the given statement Hb is removed because it is anti-periplanar to the leaving group.

What is stereochemistry and examples?

Stereochemistry is the scientific study of a substance's three-dimensional structure. The location of the material's electrons in three dimensions is the only structural distinction between the stereoisomers cross & trans analogues, which are kinds. There may be differences in the chemical and physical properties of these stereoisomers.

What makes stereochemistry so special?

The word "stereochemistry," which relates to physics in three dimensions, comes from the Greek word "stereos," which means solid. Stereochemistry cannot be regarded as a field of chemistry because almost all organic molecules are three-dimensional (with the possible exception of some olefins and aromatics, which will be covered later).

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What temperature (in °C) did an ideal gas shift to if it was initially at -13.00 °C at 4.620 atm and 35.00 L and the pressure was changed to 8.710 atm and the volume changed to 15.00 L?

Answers

Considering the combined gas law, the final temperature of the ideal gas is -62.93°C.

Boyle's law

Boyle's law states that the pressure of a gas in a closed container is inversely proportional to the volume of the container, when the temperature is constant.

The mathematical expression of this law is:

P×V= k

where:

P is the pressure.V is the volume.k is a constant.

Charles' law

Charles' law states that the volume of a gas in a closed container is directly proportional to the temperature, when the pressure is constant.

The mathematical expression of this law is:

V÷T=k

where:

V is the volume.T is the temperature.k is a constant.

Gay-Lussac's law

Gay-Lussac's law states that the pressure of a gas in a closed container is directly proportional to the temperature, when the pressure is constant.

The mathematical expression of this law is:

P÷T=k

where:

P is the pressure.T is the temperature.k is a constant.

Combined gas law

Combined law equation is the combination of three gas laws called Boyle's, Charlie's and Gay-Lusac's law:

(P×V)÷T=k

where:

V is the volume.P is the pressure.T is the temperature.k is a constant.

Analyzing an initial state 1 and a final state 2, it is fulfilled:

(P₁×V₁)÷T₁= (P₂×V₂)÷T₂

New temperature in this case

In this case, you know:

P₁= 4.62 atmV₁= 35 LT₁= -13 °C= 260 K (being 0°C= 273 K)P₂= 8.710 atmV₂= 15 LT₂= ?

Replacing in the combined gas law:

(4.62 atm× 35 L)÷ 260 K= (8.71 atm× 15 L)÷T₂

Solving:

[(4.62 atm× 35 L)÷ 260 K]×T₂= 8.71 atm× 15 L

T₂= (8.71 atm× 15 L)÷ [(4.62 atm× 35 L)÷ 260 K]

T₂= 210.07 K= -62.93 °C

Finally, the temperature is -62.93°C.

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I need help asap please

Answers

The volume of KOH in the given reaction is 0.0052 L or 5.2 mL

What is molarity?

Concentration is one of the most familiar and important parameters for those working with chemicals and reactions. It measures how much substance is dissolved in a given amount of solution. Chemists use a variety of units to express concentration. However, the term molarity, also known as molarity, is the most common way of expressing concentration. When reactants (compounds) are expressed in moles, chemical reactions can be expressed in whole numbers. This makes it easy to manipulate amounts.

Molarity describes the concentration of a solution. It is defined as the number of moles of substance or solute dissolved per liter of solution (not per liter of solvent!).

M₁V₁ = M₂V₂

Where, M₁ = Concentration of H₂SO₄ (0.11 M)

V₁ = Volume of of H₂SO₄ (0.0114 L)

M₂ = Concentration of KOH (0.24 M)

V₂ = Volume of KOH

Now, substitute the values:

0.11 × 0.0114 = 0.24 × V₂

V₂ = 0.0052 L or 5.2 mL

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What is the pH of an aqueous solution with a hydrogen ion concentration of [H+] = 6.2 x 10-6 M?
pH =

Answers

Answer: 5.2

Explanation:

[tex]\text{pH}=-\log([\text{H}^{+}])\\\\=-\log(6.2 \times 10^{-6})\\\\=5.2[/tex]

A 26.7-g sample of liquid water at 26.0 °C is mixed with 41.7 g of water at 93.7 °C. The final temperature of the water is ________ °C.

Answers

The final temperature of the water is equal to 67 °C.

How to determine the final temperature of a mixture?

The amount of heat required to heat the given amount of sample to a certain temperature can be calculated as:

Amount of absorption of heat = m ×S ×T

The final temperature of the mixture when two samples of different amounts and at different temperatures are mixed together is calculated as:

[tex]{\displaystyle T_f =\frac{m_1T_1+m_2T_2}{m_1+m_2}[/tex]

Given, the sample of water, m₁ = 26.7 g at temperature, T₁ = 26°C

The sample of water, m₂ = 41.7 g at temperature, T₁ = 93.7°C

The final temperature of the mixture will be:

[tex]{\displaystyle T_f =\frac{26.1 \times 26 + 41.7 \times 93.7}{26.7 + 41.7}[/tex]

T = 67°C

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Need help please
thanks​

Answers

400 meters is equal to approximately 1312.34 feet.

what is the mathematical relation between meter and feet?

The mathematical relationship between meters and feet is based on the conversion factor between these units. The conversion factor is defined as the number of feet per meter, which is approximately 3.2808 feet/meter.

This conversion factor can be used to convert meters to feet by multiplying the number of meters by the conversion factor.

It's important to note that the conversion factor is an approximation, as the exact conversion factor between meters and feet depends on the definition of the meter and the foot. The conversion factor provided here is based on the International System of Units (SI) definitions of these units.

According to the problem:

To convert meters to feet, use the conversion factor 1 meter = 3.2808 feet. To find the equivalent value in feet, multiply the number of meters by the conversion factor.

To convert 400 meters to feet, multiply 400 by 3.2808 to get the following result:

400 meters x 3.2808 feet/meter = 1312.34 feet

So, 400 meters is approximately 1312.34 feet.

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Outline the mechanism of the conversion of α-ketoglutarate to succinyl-CoA catalyzed by α-ketoglutarate dehydrogenase complex.
Put these 5 steps in order:
1. decarboxylation
2. transacylation
3. dihydrolipoyl dehydrogenase activity
4. oxidation of 4-carbon group, reduction of lipoamide disulfide
5. enzymatical FADH2 reoxydation by NAD+

Answers

The oxidative decarboxylation of -ketoglutarate to succinyl coenzyme A is catalyzed by the -ketoglutarate dehydrogenase complex (ODHC) (succinyl-CoA).

What kind of reaction is catalyzed by alpha-ketoglutarate dehydrogenase?

A tightly controlled enzyme called alpha-ketoglutarate dehydrogenase (-KGDH) may control the metabolic flow through the Krebs cycle. It directly creates NADH and catalyzes the conversion of -ketoglutarate to succinyl-CoA, supplying the respiratory chain with electrons.

Does alpha-ketoglutarate dehydrogenase get inhibited by succinyl-CoA?

The -ketoglutarate dehydrogenase complex does not have a sophisticated regulation system comprising a kinase and a phosphatase, in contrast to the pyruvate dehydrogenase complex. High ratios of ATP/ADP, succinyl-CoA/CoASH, and NADH/NAD+, on the other hand, inhibit activity while Ca2+ stimulates it.

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