151 u 119 u
SnO2+C--->CO2+Sn
15,1 g xg
151u---119u
15,1 g---xg
x=11,9 g
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151 u 119 u
SnO2+C--->CO2+Sn
15,1 g xg
151u---119u
15,1 g---xg
x=11,9 g