Question

9.0 mol Na2S reacts with 8.0 mol CuSO4 according to the equation below:

Na2S+ CuSO4 Na2SO4 + CuS

Considering only the 8.0 mol CuSO4, how many moles of CuS form? mol CuS

Answer 1

The balanced equation shows that 1 mol of CuSO4 reacts with 1 mol of CuS. So, if 8.0 mol of CuSO4 reacts, then 8.0 mol of CuS will form.