Question

A sample of CO2 gas has a volume of 12.0 L at STP. Calculate the number of moles of CO2 in the sample.

Answer 1

Answer:

The number of moles of CO2 is 0,54

Explanation:

We use the formula PV=nRT. The conditions of STP are 1 atm of pressure and 273 K of temperature.

PV=nRT  n=PV/RT

n=1 atm x 12 L/0,082 l atm/K mol x 273K

n=0,536049316 moles