14-7


 * 1) CuBr2 - Cu = 63.546/223.354 = 28.45%**
 * - Br2 = 159.808/223.354 = 71.54%**
 * 2) NaOH - Na = 22.990/39.997 = 57.47%**
 * 0 = 15.999/39.997 = 40%**
 * H = 1.008/39.997 = 25.20%**
 * 3) (NH4)2S**
 * H8 =**
 * 4) N2S2**
 * 5) NH4BrO4**