Question

a sample contains of 14.2g chlorine gas.What is the volume of chlorine gas at room temperature and pressure? [Relative atomic mass,Cl=35.5;Molar volume of gas=24dm³ mol^-1 at room temperature and pressure

Answer 1

M(Cl₂) = 71 g/mol

n(Cl₂) $= \frac{m}{M} = \frac{14.2}{71} = 0.2 \;mol$

V(Cl₂) $= 24 \times 0.2 = 4.8 \;dm^3$

Answer: 4.8 dm³