Question

How much gram of copper has to be reacted with concentrated H2 SO4 to produce 64 gram of SO2?

Answer 1

Cu + 2H2SO4 → CuSO4 + SO2 + 2H2O

64g SO2 is equal to 1mole

So 1mole of Cu required to produce 1mole.SO2 i.e. 64g

1mole cu=64 g (atomic mass)

64 g Cu is required to produce 64g SO2

Answer 2

This is the way hope it helps you.