Question

80.0 cm3 of hydrogen is collected during a chemistry experiment at 20.0°C and 101 kPa.

What is its volume at IUPAC stp

Answer 1

The volume is

$$V=\dfrac{TP_iV_i}{PT_1}=\dfrac{(273+0)101·80}{101.325(273+20)}=74\text{ cm}^3.$$