Sodium hydrogen carbonate (baking soda) decomposes upon heating to form carbon dioxide gas, water, and sodium carbonate. A crucible is a ceramic container that can be used for decomposition reactions since it can withstand high temperatures. To study the decomposition of sodium hydrogen carbonate, you would place a measured amount of sodium hydrogen carbonate in a crucible, heat over a bunsen burner for several minutes, and then mass the cooled product. The following data was collected during this reaction: Item

Mass (g)

Mass of Crucible

19.85

Crucible + NaHCO3

24.04

Crucible + Na2CO3

22.20

Mass of Na2CO3

?

A) Write the complete balanced equation (same rules as question 1)

--> + +

B) Calculate the mass of NaHCO3 used in the experiment: g

C) What is the Theoretical Yield of sodium carbonate (in grams)? g

D) Calculate the actual mass of the sodium carbonate? g

E) Calculate the % yield of the reaction. %