A) How many grams of calcium chloride will be produced when 27.0g of calcium car

Question

A) How many grams of calcium chloride will be produced when 27.0g of calcium carbonate are combined whith 12.0g of hydrochloric acid?

B) Which reactant is in excess and how many grams of this reactant will remain after the reaction is complete?

When calcium carbonate is added to hydrochloric acid, calcium chloride, carbon dioxide, and water are produced. CaCO3 + 2HCl CaCl2 + H2O + CO2 How many grams of calcium chloride will be produced when 27.0g of calcium carbonate are combined with 12.0g of hydrochloric acid? Which reactant is in excess and how many grams of this reactant will remain after the reaction is complete?

Explanation / Answer

A)From the reaction,

100 gm of CaCO3 reacts with 73 gm of HCl to produce 111 gm of CaCl2

27gm CaCO3 requires 19.71 gm HCl for complete reaction

But only 12 gm HCl is present

So 12 gm react with 16.43 gm CaCO3 to produce 18.24 gm of CaCl2

B)It is clear that CaCO3 is in excess and 10.57 gm will remain after the reaction is complete

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