Sodium bicarbonate reacts with citric acid in Alka Seltzer tablets when added to water in the following balanced reaction: 3NaHCO3 + C6H8O7 --> Na3C6H5O7 + 3CO2 +3H2O

a. What mass of carbon dioxide can be made from the reaction of 22.7 grams of NaHCO3 with 17.5 grams of C6H8O7?

b. What is the limiting reactant?

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