Respostas

2014-02-26T23:20:18-03:00
H2so4 + Al(oh)3
1mol 1 mol
2+32+16.4 + 27+16.3 +3
98g------------78g
X --------------1000g

78x=98000
X=98000/78
X= 1256,4

Lembrando que 1kg=1000g