Odpowiedź:
a) FeO
M Fe = 56 u
M O = 16 u
56 u + 16 u = 72 u
b) PbCl2
M Pb = 207 u
M Cl = 35,5 u
207 u + 2 * 35,5 u = 278 u
c) Cr(COH)2
M Cr = 52 u
M C = 12 u
M O = 16 u
M H = 1 u
52 u + 2 * (12 u + 16 u + 1 u) = 110 u
d) HNO3
M H = 1 u
M N = 14 u
M O = 16 u
1 u + 14 u + 3 * 16 u = 63 u
e) Ca(NO2)2
M Ca = 40 u
M N = 14 u
M O = 16 u
40 u + 2 * (14 u + 2 * 16 u) = 132 u
f) Li4
M Li = 7 u
4 * 7 u = 28 u
g) SiO4
M Si = 28 u
M O = 16 u
28 u + 4 * 16 u = 92 u
