How many moles of CO2 would be produced if 500g of CuCO3 were completely decomposed by heating?

Question

How many moles of CO2 would be produced if 500g of CuCO3 were completely decomposed by heating?

Answer 1

OK we have to start with the equation :-

CuCO3 ---> CuO  + CO2

so one mole of CuCO3  will make one mole of CO2

Now using relative atomic masses (Cu = 63.5, C = 12 and O=16)

1 mole CuCO3 = 63.5 + 12 + (16 x 3) = 123.5g

so 500g CuCO3 = 500/123.5 moles = 4.048 mole

so 4.048 mole CuCO3 will produce 4.048 mole CO2

Hope this helps.