Question

When 20 g of NaHCO₃ is heated, 12.62 g of Na₂CO₃ and 5.24 g of CO₂ is produced. How many grams of H₂O is produced?

Answer 1

Total mass of NaHCO₃ heated = 20 gms ; 

Total mass Na₂CO₃ produced = 12.62 gms 

Total mass of CO₂ produced = 5.24 gms 

∴ Mass of H₂O produced = 20 –12.62 – 5.24 = 2.14 gms