Question

peso molecular de :
kdo3
bf3
co2
hno2
c3h6

Answer 1

KClO3

 K: 1 x 39 = 39 g/mol
Cl: 1 x 35,5 = 35.5 g/mol
 O: 3 x 16 = 48 g/mol
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           Mm = 112.5 g/mol


BF3

B:  1 x 10 = 10 g/mol
F:  3 x 19 = 57 g/mol
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             Mm = 67 g/mol

CO2

C: 1 x 12 = 12 g/mol
O: 2 x 16 = 32 g/mol
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           Mm = 44 g/mol

HNO2

H:  1 x 1 = 1 g/mol
N: 1 X 14 = 14 g/mol
O: 2 x 16 = 32 g/mol
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           Mm = 47  g/mol

C3H6

C: 3 x 12 = 36 g/mol
H: 6 x 1 = 6 g/mol
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         Mm = 42 g/mol