There are a total of 24 atoms in 3 Na₃PO₄. 9 sodiums, 3 phosphorous and 12 oxygens are there.
What is sodium phosphate ?Sodium phosphate is an ionic compound formed by the loss of electron from sodium atom to the phosphate group. There are 3 sodium atoms in one sodium phosphate Na₃PO₄. One electrons from each sodium atom donates to the phosphate group.
The number of atoms in a compound are written as the subscripts for each chemical symbol. In Na₃PO₄, there are 3 sodium atoms, one phosphorous and 4 oxygen atoms. Thus, there are total 8 atoms.
In 3 Na₃PO₄, thus, contains 8 × 3 = 24 atom. Hence, the total number of atoms in 3Na₃PO₄ is 24.
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As a distant star moves away from Earth, the light given off by the star has a measurably lower frequency. What happens to the wavelength and energy of the photons of light when the frequency becomes lower?
a. The wavelength becomes longer, and the energy decreases.
b. The wavelength becomes shorter, and the energy decreases.
c. The wavelength becomes longer, and the energy increases.
d. The wavelength becomes shorter, and the energy increases.
As a distant star moves away from earth, a. The wavelength becomes longer, and the energy decreases.
What is wave length?The distance between two successive crests or troughs of a wave is known as its wavelength. The direction of the wave is used to measure it.
The distance a wave travels between its crests or troughs is known as its wavelength (which may be an electromagnetic wave, a sound wave, or any other wave). The peak of the wave is called the crest, while the trough is its base. Because a wavelength represents a distance or length, it is expressed in length units like meters, centimeters, millimeters, nanometers, etc.
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Look at the image shown.
H-H
What does this image represent?
Linear molecule with one domain
Linear molecule with two domains
Tetrahedral molecule with four domains
O
Trigonal planar molecule with three domains
what is the molality of a lithium chloride solution produced by dissolving 14.40 g of licl (42.39 g/mol) in 115 g of water?
Molality of a lithium chloride solution produced by dissolving 14.40 g of licl (42.39 g/mol) in 115 g of water is 2.96.
Molality is calculated by the formula -
Molality = number of moles of solutes ÷ weight of solvent in kilograms
Number of moles of solute = mass ÷ molecular mass
Number of moles of solute = 14.40/42.39
Performing division
Number of moles of solute = 0.34
Keep the values in formula to find the molality
We know, 1000 gram is 1 kilogram
Mass of water = 0.115 kilograms
Molality = 0.34/ 0.115
Performing division
Molality = 2.96
Thus, molality is 2.96.
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Lithium has two isotopes with mass number 6 and 7. If the relative atomic mass of
lithium is 6.94, determine the percentage abundance of each isotope.
Answer: 86.14%, 100.86%
Explanation:
The relative atomic mass of an element is the average mass of the isotopes of the element, taking into account the abundance of each isotope. To determine the percentage abundance of each isotope, we can use the following formula:
Percentage abundance = (isotope mass / relative atomic mass) x 100
For the isotope with mass number 6, the percentage abundance would be:
(6 / 6.94) x 100 = 86.14%
For the isotope with mass number 7, the percentage abundance would be:
(7 / 6.94) x 100 = 100.86%
So the isotope with mass number 6 has an 86.14% abundance, and the isotope with mass number 7 has a 100.86% abundance. The sum of these two percentages is slightly greater than 100 because the relative atomic mass is an average and does not take into account the abundance of each isotope.
one antifreeze solution is % alcohol and another is % alcohol. how much of each mixture should be added to make l of a solution that is % alcohol?
One antifreeze solution contains % alcohol, whereas the other does not. The next section explains how much of each combination to use to create one liter of alcohol-containing solution.
There are two requirements that must be met: (a) the combined volume of the two solutions must equal the sum of the volumes of the two solutions; and (b) the combined volume of the two solutions must contain the same quantity of alcohol as the combined volume of the two solutions.
Thus, we have two equations:
(1) V26 + V21 = V24 = 60 L
(2) c26V26 + c21V21 = c24V24
Equation (1) yields
(3) V21=60 L - V26.
Equation 2 yields the following:
(4) 0.26V26+0.21V21=0.24 60 L = 14.4 L
Equation 3 is replaced by 0.26V26+0.21(60 L - V26)=14.4 L in equation 4.
0.21V26=14.4 L, 0.05V26=1.8 L, and 0.26V26+12.6 L
V21=60 L - 36 L = 24 L,
where V26=1.8 L/0.05=36 L.
To get 60 L of 24% alcohol, combine 36 L of 26% alcohol with 24 L of 21% alcohol.
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complete question:
One antifreeze solution is 26% alcohol and another is 21% alcohol. How much of each mixture should be added to make 60 L of a solution that is 24% alcohol?
write net ionic equation for the following reaction: h2so4(aq)+mgco3(s)→h2o(l)+co2(g)+mgso4(aq).
The corresponding total ionic equation for the given reaction is:
H+(aq) + SO42+(aq) + MgCO3(s) ---> H2O(l) + CO2(g) + Mg2+(aq) + SO42+(aq)
Omitting the spectator ion which is the S042+ ion, we get the net ionic equation:
H+(aq) + MgCO3(s) ---> H2O(l) + CO2(g) + Mg2+(aq)
Net Ionic Equation:
A chemical reaction involving ionic species can be represented by a molecular, total, or net ionic equation. The molecular equation shows all the species in the undissociated/unionized forms. The total ionic species all the species in their dissociated/ionized ionic aqueous forms along with undissociated solid or liquid species. The net ionic equation, on the other hand, shows only those species which undergo a chemical change to form a non-aqueous species and omits any spectator ions that remain unchanged in the process.
Magnesium carbonate + Sulfuric acid → Magnesium sulfate + carbon dioxide + water.
The names of the products formed in this reaction are Magnesium sulphate, carbon dioxide and water.
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a fire is which type of reaction? question 11 options: reduction single replacement double replacement reaction oxidation\
A fire is a single replacement reaction.
Fire converts fuel and oxygen chemically into carbon dioxide and water. Because it is an exothermic reaction, heat is produced. The reason for this is that the chemical connections between the oxygen molecule's molecules are often weak, but the new bonds formed are more stable and result in a net production of energy. During combustion events, carbon dioxide is not directly created. Instead, a large number of intermediate molecules are utilized along the path. Incomplete combustion can occasionally result in extraordinarily large concentrations of these intermediate molecules. For example, a flame that doesn't get enough oxygen may produce carbon monoxide instead of carbon dioxide.
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Where are most volcanoes located? (Use information from the map.)
What is happening to the earth’s crust in these locations?
1/16if the oxygen isotope 20o has a half-life of 15 seconds, what fraction of a sample of pure 20o remains after 1.0 minute?
If the half-life of the oxygen isotope [tex]O^{20}[/tex] is 15 seconds, then after one minute, 1/16 of a sample of pure [tex]O^{20}[/tex] is still present.
The period of time it takes for one half of a radioactive isotope to decay is known as the half-life. A particular radioactive isotope's half-life is constant; it is unaffected by environmental factors and is unrelated to the starting concentration of that isotope. A half-life is the amount of time it takes for something to go from 100% to 50%. The word is most frequently used in relation to radioactive decay, which happens when unstable atomic particles lose energy. It is known that 29 elements can go through this process.
Assumed:
The [tex]O^{20}[/tex] half-life is 15 seconds.
According to this half-life, the reactant 8s will be reduced by half at this point.
Currently, 60 seconds equal one minute.
Then we will have 4 half-lives in 60 seconds.
Next, [tex]O^{20}[/tex] will be [tex]\frac{1}{2}^4[/tex]
[tex]\frac{1}{2}^4 =\frac{1}{16}[/tex]
As a result, [tex]\frac{1}{16}[/tex] a sample of pure [tex]O^{20}[/tex] is still present after one minute.
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According to wobble rules, what codons should be recognized by the anticodon 5′-ICC-3′? What amino acid residue do they correspond to?
Sequences, identified by this tRNA will be 5'-GGA-3' or 5'-GGU-3' or 5'-GGC-3'
In RNA molecules, a wobble base pair is a pairing of two nucleotides that deviates from the Watson-Crick base pair rules. Guanine-uracil (G-U), hypoxanthine-uracil (I-U), hypoxanthine-adenine (I-A), and hypoxanthine-cytosine are the four major wobble base pairs (I-C)
So I can pair with A, U, and C on an anticodon.
Pairings C and G can take place.
A pairs with U while G pairs with C, U and U pairs with A, G.
The specified order is 5′-ICC-3′. As a result, we can state that the tRNA's sequence is 3'-CCI-5'.
I serves as the foundation for this wobbling and can be paired with A, U, or C.
As a result, this tRNA will identify the mRNA with the sequence 5'-GGA-3', 5'-GGU-3', or 5'-GGC-3'.
All these Codons corresponds to the amino acid “Glycine”
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cis-1,2-Dimethylcyclohexane is achiral, not because there is a plane of symmetry, but because it consists of two enantiomeric conformations which interconvert rapidly via ring flipping at normal temperatures.
Consequently, choice is the right response (D) The symmetry plane of cis-1,2-dimethylcyclohexane exists. Additional Information: It should be emphasized that an achiral molecule is one that possesses a plane of symmetry. It is possible to superimpose an achiral molecule on its mirror counterpart.
Why is achiral cis-1 2-dimethylcyclohexane?
Instead of having a plane of symmetry, cis-1,2-dimethylcyclohexane is achiral because it has two enantiomeric conformations that quickly interconvert via ring flipping at room temperature.
There is an enantiomer of cis-1 2-dimethylcyclohexane, right?
Two different chair conformers of cis-1,2-dimethylcyclohexane are possible. Two conformational enantiomers are present here. Rapid interconversion prevents them from being resolved.
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the decay rate of an isotope is initially r 0, but after one half-life has gone by, the rate is r 0/2. at the end of the next half-life, what will the decay rate be?
The decay rate of an isotope is initially r 0, but after one half-life has gone by, the rate is r 0/2. at the end of the next half-life, The decay rate will be r0/4.
The decay rate of an isotope is a measure of the rate at which the isotope decays or breaks down into another element. The decay rate is typically expressed as the fraction of the isotope that decays per unit of time.
The half-life of an isotope is the time it takes for half of the isotope to decay. After one half-life has passed, the decay rate of the isotope is reduced to half of its initial value (r0/2). At the end of the next half-life, the decay rate will be further reduced to half of its current value, which is r0/2/2 = r0/4.
Therefore, at the end of the next half-life, the decay rate of the isotope will be r0/4.
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45)the pressure of a gas is 2.30atm in a 1.80l container. what is the final pressure of the gas if the volume is decreased to 1.20l?
According to Boyle's Law the pressure of a gas is 2.30atm in a 1.80l container. 3.45 atm is the final pressure of the gas if the volume is decreased to 1.20
Boyle's Law demonstrates the relationship between a gas's pressure and volume. To demonstrate, we press the plunger down to alter the gas's volume. The volume is reduced as a result, and as a result of the gas molecules' reduced space, the pressure is rising:
V1 = 1.80 L, V1 = 2.30 atm, V2 = 1.20 L, and P2 =?
P1V1=P2V2
Rearrange now to compute P2:
P2=P1V1V2 P2=2.30atm×1.80L1.20L=3.45atm
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an aqueous solution of ammonia, nh3, has a concentration of 6.70 mol/l and has a density of 0.950 g/ml. what are the mass percent and molality of nh3 in this solution?
The mass percent of [tex]NH_{3}[/tex] is 12.01% and The molarity of [tex]NH_{3}[/tex] is 8.015m
Aqueous solutions are solutions in which the solvent is water. It is most often represented by a chemical formula by adding (aq) to the appropriate chemical formula. For example, an aqueous solution of table salt or sodium chloride (NaCl) is represented as Na+(aq) + Cl-(aq)
Calculation :
Let the volume of solution be 1 L
So, number of mol of \ in 1 L solution will be = 6.70 mol
Mass NH3 = mol x molar mass
= 6.70 mol x 17.031 g/mol
= 114.1 g
Mass of solution = density x volume
= 0.950 g/mL x 1000 mL
= 950 g
Mass percent of NH3 = ( mass NH3 / mass solution ) x 100
putting values :
= (114.1 g / 950 g ) x 100
= 12.01 %
Mass of solvent = mass of solution - mass NH3
= 950 g - 114.1 g
= 835.9 g
1 kg = 1000 g
mass of solvent in kg = 835.9 / 1000 kg
= 0.8359 kg
Molality = mol solute / mass solvent in kg
= 6.70 mol / 0.8359 kg
= 8.015 m
So, mass percent NH3 = 12.01 %
molality of NH3 = 8.015 m
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In horses, having chestnut hair (E) is dominant o having black hair (e). A homozygous dominant p is crossed with a homozygous recessive parent.the Punnett square shows the possible genotypes o offspring. Each offspring will express a phenotype of _________ hair.
Answer:
chestnut
Explanation:
In horses, having chestnut hair (E) is dominant over having black hair (e). If a homozygous dominant parent (EE) is crossed with a homozygous recessive parent (ee), the Punnett square will show that all of the offspring will have the genotype Ee (heterozygous).
Since the chestnut hair trait is dominant, all of the offspring will express the phenotype of chestnut hair, regardless of their genotype.
Therefore, each offspring will have chestnut hair.
I hope this helps! Let me know if you have any other questions.
what is the molar concentration of cl- when 0.20 mol of zncl2 are dissolved in enough water to prepare 3.0 l of solution
The molar concentration of Cl- when 0.20 mol of ZnCl₂ are dissolved in enough water to prepare 3.0 l of solution is 0.13 M
What is it Chloride ion What is it?The chloride ion is the anion Cl. It is created when a molecule, such as hydrogen chloride, dissolves in water or other polar solvents, or when the element chlorine gets an electron. Sodium chloride and other chloride salts are usually highly soluble in water.
It is an electrolyte that is present in all biological fluids and is in charge of regulating the flow of liquid into and out of cells, conveying nerve impulses, and keeping the acid/base balance.
Less frequently, the "common" name of a chemical compound with one or more chlorine atoms covalently bound may contain the term chloride.
Given the molecular formula, we have two chlorine atoms for every mole of ZnCl₂
0.2 mol ZnCl₂ x 2 mole Cl⁻/ 1 mole ZnCl₂ = 0.4 mol Cl⁻
Now we will divide this by the volume of the solution as liters
Concentration = 0.4 mol Cl⁻ / 3 L = 0.13 M
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5. If water is added to magnesium nitride, ammonia gas is produced when
the mixture is heated. Mg3N2 (s) + H2O -> NH3 (g) + MgO (s). When excess water is added to 10.3 g of magnesium nitride, what volume of
ammonia will be collected at 24 deg C and 753 mm Hg?
Answer:
0.112L, good luck reading the whole thing
Explanation:
To find the volume of ammonia that will be produced when water is added to magnesium nitride, we need to first determine the number of moles of magnesium nitride that are present in 10.3 g of the compound. To do this, we can use the formula for the molar mass of a compound, which is given by:
molar mass = mass / moles
where mass is the mass of the compound and moles is the number of moles of the compound. Since the mass of magnesium nitride is given as 10.3 g, we can rearrange the formula to solve for the number of moles of the compound:
moles = mass / molar mass
The molar mass of magnesium nitride is given by the formula Mg3N2, which has a molar mass of 148 g/mol. Substituting this value into the formula for the number of moles of the compound and substituting the mass of magnesium nitride, we get:
moles = 10.3 g / 148 g/mol
= 0.069 mol
Since the balanced chemical equation for the reaction of magnesium nitride with water is given by:
Mg3N2 (s) + H2O -> NH3 (g) + MgO (s)
we can use the mole ratio between the reactants and products to determine the number of moles of ammonia that will be produced when 0.069 mol of magnesium nitride reacts with water. Since the equation is balanced, the mole ratio between the reactants and products is 1:1, meaning that for every 1 mole of magnesium nitride that reacts with water, 1 mole of ammonia will be produced. Therefore, the number of moles of ammonia that will be produced when 0.069 mol of magnesium nitride reacts with water is 0.069 mol.
To find the volume of ammonia that will be produced at 24 deg C and 753 mm Hg, we can use the ideal gas law, which is given by:
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 of the reaction are given as 753 mm Hg and 24 deg C, respectively, we can rearrange the ideal gas law to solve for the volume of ammonia that will be produced:
V = nRT / P
Substituting the values for the number of moles of ammonia, the ideal gas constant, and the pressure and temperature of the reaction into the formula, we get:
V = (0.069 mol) * (0.08206 L * atm / mol * K) * (297 K) / (753 mm Hg)
= 0.112 L
Therefore, the volume of ammonia that will be produced when 10.3 g of magnesium nitride is reacted with water at 24 deg C and 753 mm Hg is 0.112 L.
What are the potential benefits from storing cord blood? What are the risks or costs?
Answer:
Cord blood contains cells called hematopoietic stem cells. These cells can turn into any kind of blood cell and can be used for transplants that can cure diseases such as blood disorders, immune deficiencies, metabolic diseases, and some kinds of cancers.
Explanation:
The volume of a sample of water is found to be 86.3 cubic centimeters (cm3). What is the volume of the sample in mm3?
answer; 8.017*10^3
Explanation: because cube means it is multiplication of three times so we multiply 86.3 three times and again we multiply it with 100 because we need to convert it in mm and at last we put the answer in cube root ..
The air in your classroom contains a mixture of gases, including oxygen and nitrogen.
Which term best describes the solubility of the gases?
Answer:
The solubility of gases in a liquid or another gas is a measure of the extent to which the gas can dissolve in the liquid or gas. It is usually expressed as the amount of gas that can dissolve in a given volume of liquid or gas at a specific temperature and pressure. The solubility of gases in a mixture, such as the air in your classroom, can vary depending on the specific gases present and their relative proportions.
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Explanation:
an aqueous solution is known to contain ag , mg2 , and sr2 ions. which reagent should be used to selectively precipitate the ag ?
Only reagent (a) can be used to precipitate out the [tex]$\mathrm{Ag}^{+}$[/tex] ion selectively.
Reagents are substances or compounds that are added to a system in order to either start a chemical reaction or assess if one has already occurred. Although the terms "reagent" and "reactant" are sometimes used synonymously, "reactant" refers to a material that is consumed during a chemical reaction.
Among the given ions [tex]$\mathrm{Ag}^{+}, \mathrm{Mg}^{+2}$[/tex] and [tex]$\mathrm{Sr}^{+2}$[/tex].
The selective precipitative of [tex]$\mathrm{Ag}^{+}$[/tex] from the given mixture of ion solution can be carried out by using
a) 0.20 0.20M KBr.
[tex]$$\mathrm{Ag}^{+}(aq)+{Br}(aq) \rightleftharpoons \mathrm{Ag}^{-} {Br}(s)[/tex]
The resultant will be a yellow precipitate.
While the rest of the options [tex]$\mathrm{Mg}^{+2}$[/tex] or [tex]$\mathrm{Sr}^{+2}$[/tex] will be precipitated out.
[tex]$$\left.\mathrm{Mg}_{(aq)}^{2+}+2 \mathrm{OH}^{-}(\mathrm{aq})=\mathrm{Mg}^{+2}(\mathrm{OH)}\right_2{ }{(S)}$$[/tex]
On [tex]$\mathrm{K}_2 \mathrm{SO}_4$[/tex] and [tex]$\mathrm{K}_3 \mathrm{PO}_4, \mathrm{Sr}^{+2}$[/tex] will be precipitate out here only.
[tex]$$\begin{aligned}& \mathrm{Sr}^{+2}+\mathrm{SO}_4^{2-} \rightleftharpoons \mathrm{Sr}^2 \mathrm{SO}_4(s) \\& 3 \mathrm{Mg}^{+^2}+\mathrm{pO}_4^{3-} \rightleftharpoons \mathrm{Mg}_3 \mathrm{PO}_4(s)\end{aligned}$$[/tex]
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The complete question may be like this:
An aqueous solution is known to contain Ag+, Mg2+, and Sr2+ ions. Which reagent should be used to selectively precipitate the Ag+ ion?
a. 0.20M KBr b. 0.20M KOH c. 0.20M K2SO4 d. 0.20M K3PO4
4.0 mol Na can form 4.0 mol NaF and 2.5 mol F2 can form 5.0 mol NaF. What mass of NaF forms during the reaction? (NaF; 41.98 g/mol) [?] g NaF Round your answer to the tens place.
The mass of NaF that forms during the reaction would be 167.92 grams.
Stoichiometric problemSodium (Na) and fluorine (F) combine in a chemical reaction to form sodium fluoride (NaF) according to the following balanced equation:
[tex]Na + F --- > NaF[/tex]
From the equation, one can see that the mole ratio of Na to F is 1:1, Na to NaF is 1:1. and that of F to NaF is also 1:1.
Thus, with 4.0 mol Na and 5.0 F, 4.0 mol of NaF will also be formed. The Na will be the limiting reagent while F will be in the excess pf 1.0 mol.
Recall that, mass = mole x molar mass.
Thus, the mass of 4.0 mol Naf can be calculated as:
mass = 4.0 x 41.98
= 167.92 grams
In other words, the mass of NaF formed during the reaction would be 167.92 grams.
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how many moles of sodium chloride will be produced from the neutralization of 2.4 moles of hydrochloric acid?
From the neutralization of 2.4 moles of hydrochloric acid sodium chloride will be produced 2.4 moles.
HCl + NaOH ⇄NaCl + H2O
1 moles of HCl and 1 moles of NaOH needed to produce 1 mole of NaCl .
2.4 moles of HCl and 2.4 moles of NaOH needed to produce 2.4 mole of NaCl .
When determining how much of a substance there is, the concept of a mole is helpful. When dealing with particles at the atomic (or molecular) level, it is well understood that even a single gram of a pure element includes a vast number of atoms. The mole notion is widely utilized in this context. The most common unit of measurement is the "mole," which is a count of many particles. The number 6.02214076*1023, commonly known as the Avogadro constant, is frequently denoted by the letter "NA". Among the elementary entities that can be represented in moles are atoms, molecules, monoatomic and polyatomic ions, as well as other particles (such as electrons)
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what percent composition of phosphorus in zn3(po4)2? this means to find the percent composition of each element in the compound (zn, p, and o)
In zinc phosphate, zinc makes up 50.84% of the composition. In zinc phosphate, oxygen makes up 32.12% of the total composition.
How can I calculate the percent composition percentage?Composition as a percent Find the compound's molar mass in grams per mole for each element. Calculate the compound's overall molecular weight. Subtract the total molecular mass from the component's molar mass. The number you have now will be between 0 and 1. To obtain the composition in percent, multiply it by 100%.
How is the oxygen percentage determined?Divide the change in the burette reading by the initial volume of air in the burette and multiply by 100 to get the percentage of oxygen in air expressed as a percentage of volume.
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in the presence of sulfuric acid, this alcohol is dehydrated to form a pair of alkenes through an e1 mechanism. draw either of the major alkene products of this reaction.
in the presence of sulfuric acid, this alcohol is dehydrated to form a pair of alkenes through an e1 mechanism.hence we treat alcohol with H2SO, the main product is elimination. As we can see in the given reaction, the lone pair of oxygen electrons attached to the alcohol form a bond with the hydrogen of H2SO4 in step 1.
In the second step, H2O separates from the parent ring, resulting in a positive charge on the ring. In the third step, hydrogen is removed from the carbon next to the carbonium carbon, resulting in the formation of an alkene. An alkene is a hydrocarbon with a carbon-carbon double bond in organic chemistry. Alkene is frequently used as a synonym for olefin, which is any hydrocarbon with one or more double bonds. Monoalkenes are classified into two types: terminal and internal. The E1 mechanism, also known as unimolecular elimination, typically involves two steps: ionisation and deprotonation. As an intermediate during ionisation, a carbocation is formed. The carbocation loses a proton during deprotonation.
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gases w and x react in a closed, rigid vessel to form gases y and z according to the equation above. the initial pressure of w(g) is 1.20 atm and that of x(g) is 1.60 atm. no y(g) or z(g) is initially present. the experiment is carried out at constant temperature. what is the partial pressure of z(g) when the partial pressure of w(g) has decreased to 1.0 atm?
Chemistry is the study of substances and bonds. There are two different sorts of elements: metals and bases.
0.20 atm is the right response.
What exactly is partial pressure?Each gas in a mixture of gases has a partial pressure, which is the notional pressure of that gas if it occupied the complete volume of the initial mixture at the same temperature on its own.
A mixture of ideal gases has a total pressure equal to the sum of its constituent gases' partial pressures.
Consider the subsequent response.
Z = W(g) + X(g) Y(g) (g)
Using an ICE chart, we can determine the partial pressure of Z at a moment we'll refer to as the equilibrium.
We label each row with the pressure or change in pressure for each of the three stages: Initial, Change, and Equilibrium.
Y(g) + Z = W(g) + X(g) (g)
I 1.20 1.60 0 0 C -x -x +x +x E 1.20 -x 1.60 -x x x
The partial pressure of W at equilibrium is 1 atm.
As a result, Z has a pressure of x = 0.20 atm.
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once the substance is in the gas phase what would happen if you continue to increase the temperature
It is clear that as temperature rises, the kinetic energy of the particles in a perfect atomic gas also rises. This also holds true for actual gases and other ideal gases with more intricate molecular structures.
Heat energy is arbitrarily measured as "temperature" (enthalpy). When a system encounters a higher energy source, the temperature of that system rises as a result.
The result is the transmission of energy as heat, regardless of the source. Heat causes molecules to move more quickly (absorb energy), and some or all of the heat energy is transformed into kinetic energy.
Therefore, the result of heating a gas is a quicker rate of molecular motion. Because of the molecules' more frantic, frenetic mobility and subsequent collisions with the container walls, there is a rise in pressure inside the container.
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4.0 mol Na can form 4.0 mol NaF and 2.5 mol F2 can form 5.0 mol NaF. What mass of NaF forms during the reaction? (NaF; 41.98 g/mol) ? ] g NaF Round your answer to the tens place. g NaF
The mass of NaF forms during the reaction of 4.0 m Na and 2.5 mol [tex]F_2[/tex] to form 4.0 mol NaF would be 167.92 grams.
Stoichiometric problemSodium (Na) and Fluorine molecule ([tex]F_2[/tex]) reacts to form NaF according to the following balanced equation:
[tex]2Na + F_2 --- > 2NaF[/tex]
Now, according to the illustration, 4.0 mol of NaF is formed. Thus half of our problems have already been solved.
Recall that the mass of a substance is the product of the number of moles of the substance and its molar mass. This is mathematically expressed as:
mass = mole x molar mass
We already know that 4.0 mol of NaF was formed and the molar mass of NaF was given as 41.98 g/mol. Thus:
Mass of 4.0 mol of NaF = 4.0 x 41.98
= 167.92 grams
In other words, the mass of NaF that would be formed during the reaction will be 167.92 grams.
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a radioactive nuclide of atomic number z emits an electron, then the daughter nuclide emits a gamma ray. what is the atomic number of the resulting nuclide after both processes?
The atomic number of the resulting nuclide after both processes is Z+1
Define atomic number.
The charge number of an atomic nucleus is the chemical element's atomic number, also known as nuclear charge number (symbol Z).
Three fundamental processes, including the emission of alpha particles, beta rays, and ayos range, are involved in radioactive decay.
An rise in the atomic number of a unit is implied by the emission of a beta ray, which signifies the transition of a neutral into a proton.
Z ----> Z +1
Since the two particles' masses are nearly equal, the atomic mass remains constant, hence an antineutrino must also be released to counteract the reaction.
When the daughter particle emits a gamma ray, it transitions from its execrated state to its base state without changing its atomic mass or number.
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C₂H5OH + 202 → 2CO₂ + 3H₂O + 1367 kJ What is the mole ratio between water and carbon dioxide? ? mol H₂O mol CO2 Fill in the green blank.
Answer: There is a 3:2 mole ratio between these two compounds.
Explanation:To determine the mole ratio between water (H2O) and carbon dioxide (CO2) in the given chemical equation, you will need to balance the equation first. The balanced chemical equation is:
C2H5OH + 3O2 → 2CO2 + 3H2O + 1367 kJ
Once the equation is balanced, you can use the coefficients in front of each compound to determine the mole ratio. In this case, the coefficient for H2O is 3, and the coefficient for CO2 is 2, which means that there is a 3:2 mole ratio between these two compounds. This means that for every 2 moles of CO2, there are 3 moles of H2O produced in the reaction.
It is important to note that the mole ratio is only a way to express the relative amounts of reactants and products in a chemical reaction, and does not necessarily reflect the actual amounts of the compounds involved. To determine the actual amounts of each compound, you will need to know the mass or volume of the compounds, as well as their respective densities or molar masses.