What is the mass of 0.50 mole of baking soda, #NaHCO_3#?
The molar mass of sodium bicarbonate is
Now when you do chemistry problems like this, i.e. dimensionally and including the units of each quantity, it is an extra check on your calculation; i.e. do I divide or do I multiply? We wanted an answer in grams, and the product gave us an answer in grams, as we require.