200g of sucrose dissolved in enough water to make 800ml of solution, what's the percentage of solution?

Answer 1

You need the density of the solution to solve this problem. It would be too simplistic to say that the density of this much sugar in water was still 1.0 g/ml.

If it was, then the percentage would be simply 200 / 800 = 25%.

Get the density. Convert the ml to grams and then you can solve.