A. N: 1 x 14 g/mol= 14 g/mol
H: 3 x 1 g/mol= 3 g/mol
_______
17g/mol
B. Ag: 1x 107.86 g/mol = 107.86 g/mol
N : 1x 14 g/mol = 14 g/mol
O: 3x 16 g/mol = 48 g/mol
_________
169.86 g/mol
C. H : 2 x 1 g/mol= 2 g/ mol
S : 1 x 32 g/mol= 32 g/mol
O: 4 x 16 g/mol= 64 g/mol
_______
98 g/mol.
