CaCO3 + 2HCl == CaCl2 + H2O + CO2↑
73 111 44
m1 m2 4.4g
73/m1 = 111/m2 = 44/4.4
解得m1 = 7.3g,m2 = 11.1g
所以需要10%的盐酸质量 = 7.3/10% = 73g
生成CaCl2 11.1g