In: Chemistry
Assume you wanted to end up with 38.0 g of copper from the reaction below. What mass of copper (II) sulfate would be required?
Fe + CuSO4-------> Cu + FeSO4
Mass of Cu = 28 g
Molar mass of Cu = 63.5 g/mol
Number of moles of Cu formed = mass/molar mass
= 28/63.5
=0.441 mol
So, moles of CuSO4 required = 0.441 mol
Molar mass of CuSO4 =159.5 g/mol
Mass of CuSO4 required =number of moles * molar mass
= 0.441*159.5
=70.33 g
Answer: 70.33 g