Question

3. A 1.000 g sample of an unknown hydrate of copper chloride is gently dehydrated. The copper is isolated and weighs 0.248 g.

Develop a method for determining the empirical formula of the copper compound and for determining the percent by mass of copper in the compound.

Remark: The experimental data table obtained by the student is shown below.

Data:
Mass of crucible 20.43 g
Mass of crucible + CuxCly • zH2O. 21.43 g
Mass of crucible + CuxCly 20.976 g

Answer 1

Answer: not sure on actual answer, but heres a answer on a similar question with just different quantities.

Explanation: just minus the terms i got and u should be okay