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In cate kilograme de Ca CO₃ se gaseste acceasi cantitate de carbon ca in 5 moli CO₂.

Răspuns :

1 mol CO2.......12 g C
5 moli CO2........x g C
x=12*5=60 g C
M[tex] M_{CaCo3}=A_{Ca}+A_{C}+3A_{O}=100g [/tex]
100g CaCo3...........12 g C
y g CaCo3..............60 g C
[tex]y= \frac{100*60}{12}=500g[/tex]