Question

determine a massas moleculares
(A.)N2
(B)CO2
(C)HN02
(D)H2SO4
(E)C6H12O6

Answer 1

H= 1, C= 12, N= 14, O= 16, S=32

a) N= 2×14= 28u

b) C= 1×12= 12
O= 2×16= 32

12+32= 44u

c) H=1×1= 1
N=1×14= 14
O=2×16= 32

1+14+32= 47u

d) H=2×1= 2
S=1×32= 32
O=4×16= 64

2+32+64= 98u

e) C=6×12= 72
H=12×1= 12
O=6×16= 96

72+12+96= 180u