Question

A 5.00L flask contains 0.600g of O2 at a temperature of 22oC. What is the pressure in atm inside the flask?

Answer 1

$n=\frac{0.6}{32}=0.0188$

$T=273+22=295K$

Applying PV=nRT

$P\times5=0.0188\times0.082\times295$

$P=0.09 \ atm$