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pav-90 [236]
3 years ago
7

What is the correct mathematical relationship between the number of moles, the volume, and the standard molar volume of a substa

nce?
Chemistry
2 answers:
masha68 [24]3 years ago
8 0
N=V/Vm

n - the number of moles
V - the volume
Vm=22.4 L/mol - the standard molar volume of gas
zvonat [6]3 years ago
3 0

Answer: {\text {no of moles}}=\frac{\text {Given volume}}{\text {Standard Molar volume}}

Explanation:

According to Avogadro's law, 1 mole of every gas occupies 22.4 L of volume at standard temperature and pressure conditions.

Thus Standard molar volume of substance= 22.4 L

To calculate the moles from mass ,we use the formula:

{\text { no of moles}}=\frac{\text{Given mass}}{\text{Molar mass}}

To calculate the moles from volume ,we use the formula:

Similarly, {\text {no of moles}}=\frac{\text {Given volume}}{\text {Standard Molar volume}}

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<h3>What is the purpose of milk of magnesia?</h3>
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the question you are looking for is

People often take milk of magnesia to reduce the discomfort associated with acid stomach or heartburn. The recommended dose is 1 teaspoon, which contains 4.00x 10^{2} mg of Mg(OH)_2. What volume of an HCl solution with a pH of 1.3 can be neutralized by one dose of milk of magnesia? If the stomach contains 2.00x10^{2}mL of pH 1.3 solution, is all the acid neutralized? If not, what fraction is neutralized?

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