Question

When calcium carbonate is added to hydrochloric acid, calcium chloride, carbon dioxide, and water are produced. CaCO,(s) + 2 HCl(aq) - CaCl, (aq) + H, 0(1) + CO2() How many grams of calcium chloride will be produced when 30.0 g of calcium carbonate is combined with 10.0 g of hydrochloric acid mass of Caci, Which reactant is in excess? OHCI Осесо, How many grams of the excess reactant will remain after the reaction is complete? mass of excess reactant

Answer 1

Mass of CaCl₂ = 15.2 g

Reactant in excess = CaCO₃

Mass of excess reactant = 16.2 g

CaCO3(3) + 2HCl (ag) → Calls (aq) + H20 (1)+(QCI nolan mass 100.09 36:5 110.98 (glmon) Mass of Cally produced by 3000 g CaCO3 - 10.98g Cach x 3000g CaCO3 = 33.26g Calla - T00.09 g CaCO3 Mass of Cachy produced by 10:0g Hel . = 110.98 g Calla C 2m0lx 36.5g/m) HU x 10 og Hel = 15.2g Call, Since the mass of each is less in case of Hel. the limiting reactant is Hl. So, mass of Cally = 15.2g Reactant i excess = CaCo37 Mass of Calooz required for 100g Hel = 100.09g Cacoa 2m0 x 36.5gmolar Ha *10.09 HU = 13.8 g Ca coz New, mass of excess reactant, CaCO3 = 30.0g - 13.89