Procedure Part 1: Baking soda in water 1. Find the mass of the baking soda (in the weigh boat) before adding water. 23 grams 2. Add a little bit of water to the weigh boat, and let it sit for 5 minutes. 3. Find the mass of the baking soda (in the weigh boat) after adding the water. 46.5 grams 4. Throw the baking soda in the trash (NOT THE WEIGH BOAT). 5. Clean out the weigh boat with water at the sinks. a. Calculate the molar mass of baking soda, NaHCO3. (g/mol) b. Calculate the number of MOLES of baking soda after adding water. c. Calculate the number of MOLECULES of baking soda after adding water.