Warm Up Monday May 18, 2015:

1.  What is the percent by mass concentration of sodium bromide in a solution which contains 50.0 grams of sodium bromide dissolved in 200.0g of water?

2.  What is the molarity of a solution that contains 14g KOH per 150 mL of solution?

3.  Calculate the molality of a solution that was prepared by dissolving 23.7g calcium chloride in 375g of water.

Classwork:  Sec. 19.1 and 19.2