Any help would be appreciated.

Tutor: None Selected Time limit: 1 Day

When CaCO3 is added to HCl, CaCl2, CO2, and H2O are produced. 


How many g of CaCl2 will be made when 27g CaCO3 are combined with 12g HCl?


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

__g of CaCO3 or HCl?

Oct 16th, 2014

Molar mass of CaCO3 is 100.1g

therefore moles of CaCO3 reacting= 27g/100.1g


moles of HCl reacting=12g/36.5g   molar mass of HCl is 36.5g


since mole ratio is 1:2,it means CaCO3 is in excess, therefore the amount that reacted was



therfore moles of CaCl2 is 0.1644 moles, But since molar mass of CaCl2 is 110.984 g

grms of CaCl2 will be 0.1644 moles * 110.984


the excess reactant is CaCO3 BY


0.1053 M *100.1g

=10.54 grams

Oct 16th, 2014

Oct 16th, 2014
Oct 16th, 2014
Oct 27th, 2016
Mark as Final Answer
Unmark as Final Answer
Final Answer

Secure Information

Content will be erased after question is completed.

Final Answer