An unknown quantity of gas is held at a temperature of 295 K in a container with a volume of 25 L and a pressure of 742 kPa. How many moles of gas are in the container?

Question

Chemistry

Israel Hobbs

30 August, 00:00

An unknown quantity of gas is held at a temperature of 295 K in a container with a volume of 25 L and a pressure of 742 kPa. How many moles of gas are in the container?

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Madalyn Acosta · Answer 1

Using PV = nRT you can rearrange to find n = PV/RT

P = 742000 Pa

V = 0.025 m^3

R = 8.31

T = 295 K

n = (742000 • 0.025) / (8.31 • 295)

n = 7.56 mol