Question

Calcula la masa de los siguientes compuestos
1 . k2cr2o7
2.c12h12n2o3
3.AI(c2h3o2)3
4.NH4no3 ayúdenme no se química

Answer 1

 1 . k2cr2o7
 K: 2 x 39 = 78 g/mol
Cr: 2 x 52 = 104 g/mol
 O: 7 x 16 = 112 g/mol
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           Mm = 294 g/mol

2.   C12H12N2O3
C: 12 x 12 = 144 g/mol
H: 12 x 1 = 12 g/mol
N: 2 x 14 = 28 g/mol
O: 3 x 26 = 48 g/mol
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        Mm = 232 g/mol

3.  AI(C2H3O2)3
Al: 1 x 27 = 27 g/mol
 C: 6 x 12 = 72 g/mol
 H: 9 x 1 = 9 g/mol
 O: 6 x 16 = 96 g/mol
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         Mm = 204 g/mol


4.NH4NO3
N: 2 x 14 = 28 g/mol
H: 4 x 1 = 4 g/mol
O: 3 x 16 = 48 g/mol
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         Mm = 80 g/mol