Zadanie 1
28 g/mol---100%
x g/mol---86%
x=24 g/mol
24 g/mol:12 g/mol=2 atomy C
28 g/mol-24 g/mol=4 g/mol
4 g/mol:1 g/mol=4 atomy H
Wzór rzeczywisty: C2H4
Wzór empiryczny: (CH2)n
Zadanie 2
2 g/mol----5 g/mol
x g/mol---80 g/mol
x=32 g/mol
32 g/mol:32 g/mol=1 atom S
80 g/mol-32 g/mol=48 g/mol
48 g/mol:16 g/mol=3 atomy O
Wzór: SO3
Zadanie 3
mHNO2=1u+14u+2*16u=47 u
14 u---x%
47 u---100%
x=29,79%N
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Zadanie 1
28 g/mol---100%
x g/mol---86%
x=24 g/mol
24 g/mol:12 g/mol=2 atomy C
28 g/mol-24 g/mol=4 g/mol
4 g/mol:1 g/mol=4 atomy H
Wzór rzeczywisty: C2H4
Wzór empiryczny: (CH2)n
Zadanie 2
2 g/mol----5 g/mol
x g/mol---80 g/mol
x=32 g/mol
32 g/mol:32 g/mol=1 atom S
80 g/mol-32 g/mol=48 g/mol
48 g/mol:16 g/mol=3 atomy O
Wzór: SO3
Zadanie 3
mHNO2=1u+14u+2*16u=47 u
14 u---x%
47 u---100%
x=29,79%N