The molar concentration of OH in a water solution is 1.0 x 10-9. The pH of the solution is?

1 ⤊

a) 9.00
b) 5.00
c) > 9.00
d) < 5.00

2007-09-14 17:05:57 · 2 answers · asked by Tonnie 1 in Science & Mathematics ➔ Chemistry

pOH = -log[OH] = -log (1.0 X 10^-9) = 9.00

pH + pOH = 14
pH = 14 - pOH = 14 - 9 = 5.00

2007-09-14 17:11:39 · answer #1 · answered by kentucky 6 · 1⤊ 0⤋

b. The [H+] is 1x10-5 mole/L; hence the pH.

2007-09-14 17:12:18 · answer #2 · answered by cattbarf 7 · 0⤊ 0⤋