If 0.043 g of beryllium hydroxide Be(OH)2 is dissolved in sufficient water to make 500. mL of solution, what is the hydronium ion concentration in the solution? (Assume that all of the beryllium hydroxide dissolves.)
- 1.2 x 10-12 M
- 2.5 x 10-12 M
- 5.0 x 10-12 M
- 2.0 x 10-3 M
- 4.0 x 10-3 M