Question 1
If the reaction of phosphate ion with water is ignored, what is the
total concentration of ions in a solution prepared by dissolving 7.00 g of K
3PO
4 in enough water to make 350. mL of solution?
◦ 0.377 M
◦ 0.754 M
◦ 0.0943 M
◦ 0.0236 M
Question 2
What is the concentration of an AlCl
3 solution if 150. mL of the solution contains 250. mg of Cl
- ion?
◦ 1.41 × 10
-1 M
◦ 1.57 × 10
-2 M
◦ 3.75 × 10
-2 M
◦ 4.70 × 10
-2 M