# chem

posted by .

What weight of potassium bromide, KBr, could be recovered by evaporating 650.0 g of 15.0 percent KBr solution to dryness?

• chem -

15% KBr (w/w) means 15 g KBr/100 g soln. So how many grams KBr will you find in 650 g? That will be 15 x 650/100 = ? That's how much you can obtain by evaporation assuming good lab technique.

## Similar Questions

1. ### Chem

This is a lab concerning activity serious of metals and calculation of electrode portentions... Complete the following: if there is NO reaction write NR: (They provided the reactants, my answer is the products) Iron(s) + copper sulfate(aq) …
2. ### Chemistry

how many grams of potassium bromide could be recovered by evaporating 650 grams of 15 perentKBr solution to dryness...... 650 * (.15) = 97.5
3. ### Chemistry

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
4. ### Anatomy and Physiology

calculate the percent KBr in a solution containing 0.88 grams KBr per 800 mL solution.
5. ### Chem/Solution Concentrationa

How many gtams of potassium bromide(KBr), could be recovered by evaoportating 650.g of 15 percent KBr solution to dryness?
6. ### chemistry

A 25.0 mL sample of 1.00 M KBr and a 75.0 mL sample of 0.800 M KBr are mixed. The solution is then heated to evaporate water until the total volume is 50.0 mL. What is the molarity of the KBr in the final soltion?
7. ### Chemistry

A 36.0mL sample of 1.20 M KBr and a 56.0mL sample of 0.700 M KBr are mixed. The solution is then heated to evaporate water until the total volume is 60.0mL. What is the molarity of the KBr in the final solution?
8. ### chem

How many grams of KBR, could be recovered by evaporating 650 g of a 15.0% KBr solution of dryness?
9. ### chemistry

4. A 35.0 mL sample of 1.00 M KBr and a 60.0-mL sample of 0.600 M KBr are mixed. The solution is then heated to evaporate water until the total volume is 50.0 mL. What is the molarity of the KBr in the final solution?
10. ### chemistry

4. A 35.0 mL sample of 1.00 M KBr and a 60.0-mL sample of 0.600 M KBr are mixed. The solution is then heated to evaporate water until the total volume is 50.0 mL. What is the molarity of the KBr in the final solution?

More Similar Questions