Hmmm...which would it be....?

Question

The solubility of PbBr2 is 4.75g in 100g of H2O at 100 degrees Celcius. If 4.75g of PbBr2 are added to 200g of H2O will....

some of the PbBr2 will remain undissolved, the solution will freeze, start to boil, a saturated solution will be formed or will the solution be unsaturated???

Answer 1

WHAAAT?!?

Answer 2

Solubility (saturation) of the compound is established as 4.75g in 100g of H2O at 100 degrees C.  All factors in the second statement are the same except the volume of H2O is doubled. Because the volume of water is doubled, the answer is that the solution will be unsaturated; it would take 9.5g of compound (4.75 X 2) to be soluable (saturated) in 200g of H2O.