Question

If 20g of caco3 and 25g of Hcl are mixed, what mass of co2 is produced?

Answer 1

CaCO₃ + 2HCL = CaCl₂ + CO₂ + H₂O

100g        73g       110g       44g    18g

20g will react with (73/100 )×20g       =14.6g HCL

20g CaCO₃=(44 ×20)/100=8.8g CO₂