URGENT: Please help me answer this honors chemistry solubility question.

Question

If 10 grams of potassium chlorate were dissolved in 100 g of water at 70 degrees, how many more grams could be added until the solution was saturated?

Answer 1

You would have to know the solubility of KClO3 in water at 70 C to get a definitive answer, but I can outline the general procedure.

If the solubility of KClO3 aat 70C is X, and you have already added 10 g, then you would have to add X - 10 more grams to saturate the solution.

I looked on the internet and found solubility curves for some salts including KClO3. One chart showed that KClO3 has a solubility of 30 g / 100 g water at 70 C. Search for "solubility of potassium chlorate vs. temperature."