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a fost răspuns

1.Ce masa de FeCl3 se obtine prin reactia a 112 g Fe cu Cl?

2.ce masa de HCl se obtine in urma reactiei a 4g H cu Cl?

Răspuns :

Mihaiimbrisca
1.
2×56g 2×162,5g
2Fe + 3Cl2=>2FeCl3
112g xg
MFe=AFe=56g
MFeCl3=AFe+3ACl=56+3×35,5=162,5g
x=112×2×162,5/2×56
x=325g FeCl3
2.
2g 36,5g
H2 + Cl2 => 2HCl
4g yg
MH2=2AH=2×1=2g
MHCl=AH+ACl=1+35,5=36,5g
y=4×36,5/2
y=73gHCl

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