CaCo3 reacts with aq HCl to give CaCl2+CO2. What mass of CaCo3 is required to react completely with 50cm^3 of 0.60M HCl. Calculate volume of CO2 produced at STP.

Answer 1

CaCO3 + 2HCl ==> CaCl2 + H2O + CO2

mols HCl = M x L = ?
Using the coefficients in the balanced equation, convert mols HCl to mols CaCO3.
Now convert mols CaCO3 to grams. grams = mols x molar mass = ?

For part 2. use the coefficients to convert mols HCl to mols CO2. hen volume CO2 = mols x 22.4 L/mol = ? Liters.