Question

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

Answer 1

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