Antwoorden bij H3: De molaire massa
20a. M H3PO4 = 3 x 1 + 1 x 31 + 4 x 16 = 98 g
20b. M C6H12O6 = 6 x 12 + 12 x 1 + g x 16 = 180 g
20c. M C16H18N2O4S = 16 x 12 + 18 x 1 + 2 x 14 + 4 x 16 + 1 x 32 = 334 g
20d. M P2O5 = 2 x 31 + 5 x 16 = 142 g
20e. M NaCl = 1 x 23 + 1 x 35,5 = 58,5 g
20f. M C2H6 = 2 x 12 + 6 x 1 = 30 g
21a. M H2O2 = 2 x 1 + 2 x 16 = 34 u
21b. M Ag = 108 u