how many grams of potassium bromide could be recovered by evaporating 650 grams of 15 perentKBr solution to dryness......
650 * (.15) = 97.5
is this correct
yes
Yes, your calculation is correct. To determine how many grams of potassium bromide (KBr) could be recovered by evaporating a 15% KBr solution to dryness, you need to multiply the mass of the solution (650 grams) by the percentage of KBr in the solution (15%).
650 grams * 0.15 = 97.5 grams
Therefore, you could recover approximately 97.5 grams of potassium bromide by evaporating 650 grams of the 15% KBr solution to dryness.