Question

A teacher dissolves 5 gram of copper sulphate in 100 gram of water. Name the solvent and solute. What is the mass of the resulting solution?

Answer 1

Answer:

CuSO4→Cu(2+)+SO4(2-)

Solubility of copper sulfate=20.5g/L at 20C.

=2.05g/100mL

All of the copper sulfate (2g) will dissolve at this temperature. If at colder temperatures, a precipitate will form, but if not, the solution will be 100g (water) + 2g (CuSO4) = 102g.

Solvent=water

Solute=copper sulfate