1. If a student weighs 0.0985 g of Cu sponge at the beginning of his/her experiment:

a. How many moles of Cu metal is this?

b. How many moles of hydrated copper (II) ion would be produced when weighed Cu metal dissolves in enough HNO, solution?

c. How many moles of Cu(OH), will be formed?

d. How many moles of CuO will be formed?

e. How many moles of Zn metal would be required to completely reduce the copper (II) ion obtained when CuO is dissolved in H ₂ SO ₄

f. How does "the law of conservation of mass" apply to the above calculations?

2. What is the % yield of Cu metal if the same student recovers 0.0673 g of Cu at the end of his/her experiment?

Answer rating: 100% (QA)

1 a moles of Cu metal mass molar mass 0098563546 155 x 10 3 mol b moles of ... View the full answer