Question

calculate the mass of calcium chloride (ca12)that can be obtained from 25g of lime stone (caco3)in the presence of excess hydrogen chloride (HCI). ca=40 c=12 0=16 H=1 cl=35.5

Answer 1

25g Caco3 x (1 mol Caco3/100.09g Caco3) x (2 mol CaCl2/1 mol Caco3) x (147.01g CaCl2/1 mol CaCl2) = 0.98g CaCl2