Determine the ph of each solution

Question

Determine the pH of each solution.

Part A

pOH= 12.0

Part B

pOH= 4.5

Part C

pOH=0.85

Part D

pOH= 9.98

Answer 1

pH + pOH = 14

pH = -log [H+]

[H+][OH-] = 1x10-14

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A). pOH = 12.0

pH = 14 - 12.0

pH = 2.0

B). pOH = 4.5

pH = 14.0 - 4.5

pH = 9.5

Do you think you can do C and D?