Respostas

2013-12-01T14:13:27-02:00
Massa molar:
mg=24
C=12 x duas moleculas=24
O=16 x 2 moleculas= 32
H=1x 2 moleculas=2
mg (COH2)= 24+24+32+2=82 gramas/ mol
1 mol _______________82 gramas
56mols_______________x
x=4592 gramas/mols
1 5 1