A 475mL sample of gas was collected at a temperature of -21.5 and a pressure of 756mmHg. Calculate the volume of a gas(in liters) if the conditions were altered to STP

The volume of gas under STP is 0.512 liters.

Explanation:

At STP (Standaed Temperature and Pressure)

T =  0°C

P = 1 atm = 760 mmHg

Given

P1 = 756 mmHg

T1 = -21.5°C = -21.5 + 273 = 251.5 K

V1 = 475 mL = 0.475 L

P2 = 760 mmHg

T1 = 0°C = 0 + 273 = 273 K

We know that

V2 = 0.512 L

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