m([tex]Ca Cl_{2} [/tex])=535 g m(Cl)=? The molar mass of [tex]CaCl_{2} [/tex] = 40.08 + 2 * 35.45 = 110.98 The atomic mass of Cl: 35.45 ( you can see it in the Periodic table) 110.98 g [tex]CaCl_{2} [/tex]- 35.45 * 2 g Cl 535 g [tex]CaCl_{2} [/tex] - x g Cl Proportion: 110.98 : 535 = (35,45 * 2) : x x = 535 * 35.45 * 2 / 110.98 = 37,931.5/110.98 = 341.79 g Answer: m(Cl)=341.79 g