Solution #2 will need to contain 11 g/L of cerium (IV) ammonium nitrate (Ce(NH4)2(NO3). We will need to prepare 50.0 mL of solution 2. How many grams of cerium (IV) ammonium nitrate will we need to measure out?

Three resonant structures can be seen in the S2O Lewis structure. Within the molecule, double bonds may form as a result of the transfer of electron pairs from the outer sulfur and oxygen atoms. As a result, the stable S2O Lewis structure with no formal charges is formed.

The Octate rule does have three common exceptions, though: molecules with an odd number of electrons, such as NO; molecules like SF6 in which one or more atoms have more than eight electrons; molecules with one or more atoms that have fewer than eight electrons, such as BCl3.

Carbon monoxide's Lewis-dot structure is as follows:

C≡O:

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To solve such this we must know the concept of chemical reaction. Therefore, the pressure of the dry gas alone is 1.27 atm. The dry gas is always collected in water.

Chemical reaction is a process in which two or more than two molecules collide in right orientation and energy to form a new chemical compound. The mass of the overall reaction should be conserved. There are so many types of chemical reaction reaction like combination reaction, double displacement reaction.

pressure of water vapor = 2.20 kPa=2,200Pa = 0.022 atm

pressure of water vapor + pressure of gas =1.3 atm

substituting all the given values in the above equation, we get

0.022 atm + pressure of gas =1.3 atm

pressure of gas = 1.3 - 0.022

                         = 1.27 atm

Therefore, the pressure of the dry gas alone is  1.27 atm.

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Answer:The higher something is before it falls, the longer gravity can act on an object.

Explanation:

When something is dropped from higher up it has more time to fall thus giving gravity more time to act on the object.

Take a look at this link for more information.

http://faculty.ric.edu/psci103/newton/newton_notes.pdf

Answer: Physical change: H20 (s) → H20 (1)

Chemical change: C6H1206 (s) + 6 02 (g) 6C02 (g) + 6 H20 (1)

Explanation:

Answer:

I think it means something thats very good

The pressure of the gas can be obtained in each case as;

a) 53.1 atm

b) 51.56 atm

We know that an ideal gas is the kind of gas that follows the ideal gas law. We know that we can be able to calculate the pressure of the gas using the Ideal gas equation as well as by the use of the Van Der Walls correction of the equation.

Thus we have;

PV = nRT

P = pressure

V = volume

n = Number of moles

R = gas constant

T = Temperature

Then;

P = nRT/V

P = 5.2 * 0.082 * 623/5

P = 53.1 atm

Using the Van Der Walls Correction;

P = nRT/V - nb - a(n/V)^2

P = 5.2 * 0.082 * 623/5 - (5.2 * 0.05105) - 4.250(5.2/5)^2

P = 265.6 /4.73 - 4.597

P = 51.56 atm

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The equation of line of best fit is y = -0.8x + 29.25 and the time spent doing homework for a student who spends 15 hours watching TV is 17.25 hours.

The line of best fit is a mathematical concept that correlates points scattered across a graph. It is a form of linear regression that uses scatter data to determine the best way of defining the relationship between the dots. In order to determine the line of best fit, draw the approximate line between the given points using graphing tools and determine the slope and y intercept. Choose two points (15,15) and (10, 19). Hence, the slope is:

Slope = Rise / Run = (15 – 19)/(15 – 10) = - 0.8

y intercept = 29.25

a) The equation of the lines of best fit is: y = -0.8x + 29.25.

b) when x = 15 hrs

y = -0.8(15) + 29.25

y = 17.25 hours

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they have been oxidized; oxidation is therefore the loss of electrons

'

From the information given in Table 5.2, let's determine whether each metal (Cu, Fe, and Zn) was oxidized and identify the oxidizing agent(s) involved.

Cu (Copper):

Was the Metal Oxidized? No, there was no reaction observed for Cu.

Oxidizing Agent(s): No oxidizing agent was involved as there was no reaction.

Fe (Iron):

Was the Metal Oxidized? Yes, Fe was oxidized as there was a reaction observed.

Oxidizing Agent(s): The oxidizing agent involved in the reaction with Fe is not specified in the table.

Zn (Zinc):

Was the Metal Oxidized? Yes, Zn was oxidized as there was a reaction observed.

Oxidizing Agent(s): The oxidizing agent involved in the reaction with Zn is not specified in the table.

It appears that Cu did not undergo any reaction, while both Fe and Zn were oxidized in their respective reactions. However, specific details about the oxidizing agents are not provided in the table.

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Transcription is said to be synthesis of RNA from DNA. Genetic information flows in the direction from DNA to proteins, the substances that give organisms shape. This information flow occurs through a cascade of processes of transcription (DNA to RNA) and translation (RNA to protein). Transcription occurs when a particular gene product is needed  at a particular time or in a particular tissue.

Normally only his one strand of DNA is copied during transcription. This is called the template strand, and the resulting RNA molecule is a single-stranded messenger RNA (mRNA). In eukaryotes (organisms with cell nuclei), the first transcript is called pre-mRNA. Pre-mRNAs are extensively edited by splicing before mature mRNAs are generated and ready for translation by ribosomes, organelles that serve as sites for protein synthesis. Transcription of any gene occurs at that gene's chromosomal location, which is a relatively short segment of the chromosome. Active transcription of a gene depends on the need for activity of that particular gene in a particular cell or tissue or at a particular time.

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The complete question is as follows:

Below is shown the lac operon in a single possible situation. Study the figure carefully, then select what is expected to be occurring in terms of

(a) glucose concentration

(b) lactose concentration during this situation.

CAP + cAMP and inducer-repressor complex below operon

(c) transcription level

CAP site empty and inducer-repressor complex below operon

The heat needed to convert 40.0 grams of CH₃OH (s) at -97.53˚C to CH₃OH (l) at -43˚C is equal to 5278.5 J.

The specific heat capacity can be defined as the heat required to raise the temperature of one unit of mass by one degree Celsius. The specific heat capacity depends upon the type of material.

The mathematical form is used to calculate the specific heat is equal to:

Q = mCΔT

Given, the mass of the methanol, m = 40 g

The final temperature of the methanol, T₂ = -43°C

The change in temperature of methanol, ΔT = -43 + 97.53 = 54.53°C

The specific heat capacity of methanol, C =  2.5 J/g·°C

The heat required to change methanol temperature:

Q = 40 × 2.42 × 54.53

Q = 5278.5 J

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

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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The anion name on the left with the name of the acid containing that anion on the right:

1) chloride Cl⁻ = hydrochloric acid

2) sulfite SO₃²⁻ =  sulfurous acid

3) sulphate SO₄²⁻ = hydro sulfuric acid

4) chlorite ClO₂⁻ = chlorous acid

1) chloride Cl⁻ = hydrochloric acid because the hydrochloric acid, HCl contain anion that is Cl⁻.

2) sulfite SO₃²⁻ =  sulfurous acid because the sulfurous acid H₂SO₃ that contains anion as  SO₃²⁻.

3) sulphate SO₄²⁻ = hydro sulfuric acid because the hydrosulfuric acid H₂SO₄ contains the anion as SO₄²⁻.

4) chlorite ClO₂⁻ = chlorous acid because the the chlorous acid , HClO₂ contains the anion as ClO₂⁻.

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The pH of the solution at the given condition will be 7.5 .

Since the solution is at 25°C which is the standard temperature, we can apply the following relation :

pH = 14.00 - pOH

In the given case the pOH of the solution is 6.51, which on substituting in the relation we get

pH = 14.00 - 6.51

pH = 7.49 ≈ 7.5

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The volume of the CO₂ collected over water at 38.0 °C when a mixture of 55.5 g of citric acid and excess sodium bicarbonate is added to a tub of water is 24.9 L

First, we shall determine the number of mole of CO₂ obtained from the reaction. Details below:

C₆H₈O₇(s) + 3 NaHCO₃(s) + H₂O(l) → Na₃C₆H₅O₇(aq) + 4 H₂O(l) + 3 CO₂(g)

From the balanced equation above,

1 mole C₆H₈O₇ reacted to produce 3 mole of CO₂.

Therefore,

0.289 mole CaCO₃ will react to produce = 0.289 × 3 = 0.867 mole of CO₂.

Finally, we shall determine the volume of the CO₂ produced. This is illustrated below:

PV = nRT

Divide both sides by P

V = nRT / P

V = (0.867 × 0.0821 × 311) / 0.889

V = 24.9 L

Thus, the volume of CO₂ obtained is 24.9 L

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Brianne feels shocked and sad when she sees the wreckage in far rockaway.

This is referred to as a subjective point of view which is used to depict specific sensations based on different factors and circumstances. Examples of feelings include shock, excitement etc which denotes the state of mind of the individual.

In the incidence of a hurricane, she paid attention to the extent of the damaged situation. She watched the news and was in total shock as it narrated the destruction of places she loved and went to for various reasons which is therefore how she felts when she saw the wreckage.

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Sulfur is a chemical element with the atomic number 16 and the symbol S.

The nonmetallic chemical element sulfur (S), also spelled sulfur, is one of the most reactive elements and is a member of the oxygen group (Group 16 of the periodic table). A pale yellow solid with no flavour or odour, pure sulphur is also insoluble in water and has poor electrical conductivity. It is also brittle and tasteless.

The elements sulphur and metal sulphide ores are both found naturally. Near hot springs and volcanoes is where it can be found in its natural state. The tenth most prevalent element, sulfur, is present in nearly all plant and animal life, meteorites, the ocean, the earth's crust, and the atmosphere.

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Answer:

Explanation:

(a) When an additional 1.80 mol of argon gas is added to the container, the total number of moles of gas increases to 1.80 + 1.80 = 3.60 moles. Since the pressure and temperature of the gas remain constant, the volume of the gas will also remain constant at 10.00 L. So the new volume of the gas will be 10.00 L.

(b) When 25.0 g of argon gas is added to the container, we need to convert the mass of the gas to moles to determine its effect on the volume. We can use the ideal gas law to do this:

PV = nRT

Where P is the pressure, V is the volume, n is the number of moles, R is the ideal gas constant, and T is the temperature.

Since the pressure and temperature remain constant, we can rearrange the equation to solve for n:

n = PV/RT

Plugging in the values, we get:

n = (1.00 atm)(25.0 g)/(0.08206 Latm/molK)(298 K)

This gives us a value of n = 0.34 mol.

Now that we know the number of moles of gas, we can use the ideal gas law again to solve for the new volume of the gas:

V = nRT/P

Plugging in the values, we get:

V = (0.34 mol)(0.08206 Latm/molK)(298 K)/(1.00 atm)

This gives us a new volume of V = 13.5 L.

(c) When half of the gas escapes from the container, the total number of moles of gas decreases to 1.80/2 = 0.90 mol. Again, we can use the ideal gas law to solve for the new volume of the gas:

V = nRT/P

Plugging in the values, we get:

V = (0.90 mol)(0.08206 Latm/molK)(298 K)/(1.00 atm)

This gives us a new volume of V = 7.50 L.

I hope this helps! Let me know if you have any questions

Answer:

Hi, I'm here to help you. If you have any further question let me know

Explanation:

(a) An additional 1.80 mol of argon gas is added to the container.

The new volume of the gas would be 20.0 L.

(b) A sample of 25.0 g of argon gas is added to the container.

To determine the new volume of the gas, we need to first determine how many moles of argon gas are present in the 25.0 g sample. To do this, we can use the molar mass of argon, which is 39.948 g/mol. This gives us a total of 0.625 moles of argon in the 25.0 g sample. Since the pressure and temperature are constant, the volume of the gas will increase in proportion to the number of moles of gas present. Since 0.625 moles of gas is being added to 1.80 moles of gas, the total number of moles of gas will be 2.425 moles. The new volume of the gas will be 10.00 L * (2.425 moles / 1.80 moles) = 13.5 L.

(c) A hole in the container allows half of the gas to escape.

The new volume of the gas would be 10.00 L / 2 = 5.00 L.

A sample of potassium nitride contains 0.900 moles of potassium ions. 2.689 moles of nitride ions do it contain

1 mole is defined as 6.023 x 1023 ions.

Here, there are 5.4 x 1022 ions, or 0.08965 moles (5.4 x 1022/6.023 x 1023).

Calcium: C +1

Nitric acid: N -3

Three potassium's are required to balance out the -3 charge that one nitride possesses since the total charges must cancel out.

K3N

Moles of potassium ion are therefore 3 x 0.08965, or 2.689 moles.,

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The properties of the shells that are closer to the nucleus are they have less energy. Therefore, option C is correct.

In order to accomplish work and to produce heat and light, energy must be transferred to a body or to a physical system. Energy is the quantitative attribute that does this.

The 1n shell, which is the one nearest to the nucleus, may accommodate two electrons, while the 2n and 3n shells can accommodate eight and eighteen electrons, respectively. The reactivity of an atom—or propensity to establish chemical interactions with other atoms—depends on the amount of electrons in its outermost shell.

The position of an electron in relation to an atom's nucleus can be used to calculate its energy. The energy level decreases as the electrons get nearer to the nucleus.

Thus, option C is correct.

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An excess demand will emerge if a minimum price is set below the equilibrium price. In the IPAD market, assuming everything else stays the same.

Federal milk marketing orders, interactions with the federal dairy price assistance program, and wholesale commodity prices for cheese, butter, nonfat dry milk, and dry whey all play a significant role in determining milk pricing at the farm level.

Demand for everyday items like milk declines as consumer incomes fall. A lower milk price will result in an increase in the supply of all goods containing milk as an ingredient.

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According to percent composition, the percent of mass of zinc  in sample of zinc sulfate is 40.50 %.

Percent composition is defined as a convenient way to record concentration of solution.It is a expression which relates solute to solvent as,mass of solute/mass of solution ×100.There are two types of percentage composition percent weight by volume and percent volume by volume .

In the given example, percent composition of zinc= mass of zinc/mass of zinc sulfate×100

substituting values in above equation,65.38/161.442×100=40.50 %.

Thus, the percent of zinc in zinc sulfate is 40.50 %.

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Answer:

0.83 moles

Explanation:

To find the number of moles of NO that are formed from 2.50 moles of NO2 in the presence of plenty of water, we can use the mole ratio from the balanced chemical equation. The mole ratio is the ratio of the number of moles of each reactant and product in the chemical reaction.

In the given reaction, the mole ratio of NO2 to NO is 3:1. This means that for every 3 moles of NO2, 1 mole of NO is formed. Therefore, if we have 2.50 moles of NO2, the number of moles of NO that are formed will be 1/3 of that amount, which is 2.50 moles / 3 = 0.83 moles.

Therefore, the number of moles of NO that are formed from 2.50 moles of NO2 in the presence of plenty of water is 0.83 moles.

1700g . To find the molarity of a solution, we divide the number of moles of solute by the total volume of liters of solution.

We know that,

Molarity (mol/litre) = n ( moles of solute)/ Volume of solution

Now, 50 = n / 0.250

Then, n= 12.5 moles.

Now, as we know,

n = given mass/ molar mass

Then, molar mass of zinc chloride. ( ZnCl2) = (65 + 35.5×2) = 65 + 71 = 136 g/mol

12.5 = given mass / 136

Therefore, given mass = 1700 grams.

It's important to keep in mind that M1V1 = M2V2, where M1 is the starting concentration, V1 is the initial volume, M2 is the concentration following mixing or dilution, and V2 is the total final volume. V2 is the total of the volumes blended while working with diluted aqueous solutions.

The number of moles per liter, denoted by the unit symbol mol/L or mol/dm3 in SI units, is the most often used unit denoting molarity in chemistry. One mol/L of a solution's concentration is referred to as one molar, or 1 M.

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Planarity of the peptide bond means that no rotation occurs about the C(O)-N bond while rotation is allowed about the C-alpha-C(O) and N-C-alpha bonds.

Because it has a partial double bond property, the peptide bond is a stable covalent bond and is referred to as a stiff planar bond. The length of the bond is the primary piece of evidence supporting this partial double bond feature.

Rotation cannot occur because of the partial double bond character of the peptide bond. The conformations of the peptide backbone are constrained by this lack of rotation, which also reduces the range of potential configurations.

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Answer:

Explanation: Use the ideal gas law formula

PV = nRT

P = pressure (atm)

V = volume (L)

n = moles

R = universe gas constant (.0821)

T = temperature (K)

-- the given temperature is in Celcius to convert it to Kelvin you add 273 to it

plug in the numbers and solve for n

Answer:

C. Check if the ions of two compounds exchange places.

Taking into account the definition of molarity, the mass of solute present in 705 mL of 0.470M KBr is 39.43 grams.

Molarity is a measure of the concentration of a solute in a solution expressed in the number of moles dissolved per liter of solution. This is, the molarity indicates the number of moles of solute that are dissolved in a given volume.

The molarity of a solution is calculated by:

molarity= number of moles÷ volume

Molarity is expressed in units moles/L.

In this case, you know:

Replacing in the definition of molarity:

0.470 M= number of moles÷ 0.705 L

Solving:

0.470 M× 0.705 L= number of moles

0.33135 moles= number of moles

Being the molar mass of KBr 119 g/mole, the mass of the compound can be calculated as:

mass= molar mass× number of moles

mass= 119 g/mole× 0.33135 moles

mass= 39.43 grams

Finally, the mass of solute is 39.43 grams.

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The every atom in H₂CO molecule has bond angle is 120 °. the bond angle HCH is 116 ° and The bond angle of H₂CO is 122°.

The H₂CO has trigonal planar molecular geometry. the H₂CO has the same electron geometry that is trigonal planar. The every atom atom attached to the central atom has bond angle is  120 °. the central atom is surrounded by three regions of the electron density. according to the VSEPR theory the molecular geometry is trigonal planar. The  H₂CO is the polar molecular. the hybridization is sp².

Thus, the bond angle in  H₂CO is 120 ° and the molecular geometry is trigonal planar.

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246 grams are in 7.84 x 10²² no. particles of Zn(NO₃)₂

A particle is any fundamental piece of matter or energy, according to science. A particle is an amount of stuff that scientists or engineers use to build hypotheses about their field of study. There are no size restrictions when defining a particle.

As we know,

molar mass of zinc (Zn) = 65.38 gm

molar mass of Zn(NO₃)₂ = 189.36 gm

or we can say,

1 mol of Zn(NO₃)₂ contains 189.36 gm of mass.

Also, 1 mol of Zn contains 6.023 × 10²³ no. of particles.

So, 6.023 × 10²³ no. of particles have mass 189.36 gm.

7.84 x 10²²  no. of particles have mass 246 gm.

246 grams are in 7.84 x 10²² no. particles of Zn(NO₃)₂.

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The expression for the pressure of an ideal gas by means of kinetic theory is P = J / V.

According to the kinetic theory, a gas is made up of numerous submicroscopic particles (atoms or molecules), all of which are moving randomly and continuously. The container's walls and the quickly moving particles constantly collide in this situation.

It should be noted that based on the information, the formula illustrated will be:

f² = u²+ v² + w²

p = mv

where P = momentum

m = mass

v = velocity

Time = Distance / Speed

Force = mass × velocity² / distance

Pressure = force / area

J = mn

P = J/V

where

J = total mass

V = total volume

p = density of gas.

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