A gas occupies 30.3 L at 2.00 atm pressure and 27°C. How many moles of gas are present in the sample?

Name: A gas occupies 30.3 L at 2.00 atm pressure and 27°C. How many moles of gas are present in the sample?
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Question

Quizplus · Accepted Answer

We can use the ideal gas law: PV = nRT

P = 2.00 atm
V = 30.3 L
T = 27°C + 273 = 300 K
R = 0.0821 L·atm/(mol·K)

Solving for n:

n = PV/RT = (2.00 atm)(30.3 L)/(0.0821 L·atm/(mol·K) * 300 K) = 2.46 mol

Therefore, the answer is choice C.

A Gas Occupies 30