how many grams of potassium bromide could be recovered by evaporating 650 grams of 15 perentKBr solution to dryness......

650 * (.15) = 97.5

is that correct..

yes

To determine the number of grams of potassium bromide (KBr) that could be recovered by evaporating a 650-gram solution of 15% KBr to dryness, you can follow these steps:

1. Calculate the mass of KBr in the solution:
- Multiply the total mass of the solution (650 grams) by the percentage of KBr in the solution (15%).
- 650 grams * 0.15 = 97.5 grams

Therefore, 97.5 grams of potassium bromide could be recovered by evaporating the 650-gram 15% KBr solution to dryness.