# How many grams are in a mole of hydrogen chloride?

The molar mass of $H C l$ is $36.46 \cdot g \cdot m o {l}^{-} 1$.
How did I get that figure. Well, I looked up my Periodic Table, and took the sum of the atomic mass of hydrogen and chlorine: (1.00794+35.45)*g*mol^-1=???
$\text{Avogadro's number}$ $=$ $6.022 \times {10}^{23} \cdot m o {l}^{-} 1$. How many individual $H C l$ molecules are in a mass of $36.46 \cdot g$ of the gas?