1. At the freezing point of water(0?C), Kw=1.2×10?15. Calculate [H+] and [OH?] fora neutral solution at thistemperature. [H+], [OH?] = ??

2. Which solution below has the highest concentration ofhydroxide ions?

	pH = 6.0
	pH = 7.6
	pH = 4.5
	pH = 9.2
	pH = 12.4

3. Which solution below has the highest concentration ofhydronium ions?

	pH = 6.5
	pH = 13.5
	pH = 9.9
	pH = 3.1
	pH = 7.7

4. An aqueous solution at 25.0°C contains [H+] = 0.085 M. Whatis the pH of the solution?

1.20 ? 10?13

1.07

13.0

-1.0

0.0850

5. The pH of an aqueous solution at 25.0 °C is 10.40. What isthe molarity of H+ in this solution?

	1.0 ? 10-13
	4.0 ? 10-11
	2.5 ? 1010
	3.60
	2.5 ? 10-4