... Chapter 2Atoms and Elements2011, NKMB Co., Ltd.Chemistry, Julia Burdge, 2st Ed.McGraw Hill.Mr. Truong ... sample of sodium chloride contains 39.3 g of sodium and 60.7 g of chlorinea 200.0 g sample of sodium chloride contains 78.6 g of sodium and 121.4 g of chlorine54.1g 78.6g 21.41Na of massCl ... sodium and 35.44 g of chlorine541.1g 22.99g 5.443Na of massCl of mass==Chemistry, Julia Burdge, 2nd e., McGraw Hill.12Law of Multiple Proportions•When two elements, (call them A and...