Question: how many moles of hydrogen chloride are contained in a 52.6-g sample of this gas?
Answer: How many moles of hydrogen chloride are contained in a 52.6-g sample of this gas? The number of moles can be determined if we divide the mass of the sample by its molar mass: n = m M = 52.6 1 + 35.5 = 1.44 mol . n=\frac{m}{\Mu}=\frac{52.6}{1+35.5}=1.44\text{ mol}. n=Mm=1+35. 552.6=1.