Problem: Calculate the pH of a solution at 25°C in which the [OH−] = 5.4 x10  −7 M.A) 4.51B) 7.05C) 7.73D) 6.38E) 8.40

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We’re being asked to calculate for the pH of a solution in which the [OH­-] = 5.4x10-7 M.


The pH and pOH of a compound determine its acidity and basicity.

• pH

▪ pH stands for the negative logarithmic function of hydronium ion concentration
can be calculated using the following equation:

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Problem Details

Calculate the pH of a solution at 25°C in which the [OH] = 5.4 x10  −7 M.

A) 4.51

B) 7.05

C) 7.73

D) 6.38

E) 8.40

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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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