# Problem: What is the concentration (in M) of hydroxide ions (OH −) in a solution at 25.0 °C with pH = 4.282?      A) 9.72 B) 1.66 × 10 4 C) 1.91 × 10 −10 D) 5.22 × 10 −5 E) 4.28

###### Problem Details

What is the concentration (in M) of hydroxide ions (OH ) in a solution at 25.0 °C with pH = 4.282?

A) 9.72

B) 1.66 × 10 4

C) 1.91 × 10 −10

D) 5.22 × 10 −5

E) 4.28

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Our tutors have indicated that to solve this problem you will need to apply the pH and pOH concept. You can view video lessons to learn pH and pOH. Or if you need more pH and pOH practice, you can also practice pH and pOH practice problems.

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Based on our data, we think this problem is relevant for Professor Delgado's class at FIU.