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Calcula la masa de los siguientes compuestos1 ?

Calcula la masa de los siguientes compuestos 1 . K2cr2o7 2. C12h12n2o3 3. AI(c2h3o2)3 4. NH4no3 ayúdenme no se química.

En resumen

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

Mejor respuesta

Robertbarbz
2

1 . k2cr2o7

K : 2 x 39 = 78 g / mol

Cr : 2 x 52 = 104 g / mol

O : 7 x 16 = 112 g / mol

```````````````````````````````````` 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

```````````````````````````````` 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

`````````````````````````````````` 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

`````````````````````````````` Mm = 80 g / mol.