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AlexFokin [52]
3 years ago
13

How many moles are in 5.25 L of oxygen gas as stp

Chemistry
1 answer:
Masteriza [31]3 years ago
8 0

Answer:

The correct answer is 0, 235 mol

Explanation:

We use the formula PV =nRT. The normal conditions of temperature and pressure are 273K and 1 atm, we use the gas constant = 0, 082 l atm / K mol:

1 atm x 5, 25l = n  x 0, 082 l atm / K mol x 273 K

n= 1 atm x 5, 25l /0, 082 l atm / K mol x 273 K

n= 0, 235 mol

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Explanation:

Given that:

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Convert Celsius to Kelvin

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Pressure P = ?

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Note that Molar gas constant R is a constant with a value of 0.0082 ATM dm3 K-1 mol-1

Then, apply ideal gas equation

pV = nRT

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