Chemistry Practice Problems pH and pOH Practice Problems Solution: Calculate the hydronium ion concentration for a so...

Solution: Calculate the hydronium ion concentration for a solution with a pH of 6.8.(A) 6.3 × 10−8 M (B) 1.6 × 10−7 M (C) 6.8 M (D) 0.83 M (E) 6.3 × 106 M

Problem

Calculate the hydronium ion concentration for a solution with a pH of 6.8.

(A) 6.3 × 10−8

(B) 1.6 × 10−7

(C) 6.8 M 

(D) 0.83 M

 (E) 6.3 × 106 M

Solution

Establish the related equations for pH and [OH-] then calculate the concentration of OH- using the provided pH 

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

• pOH

▪ pOH stands for the negative logarithmic function of hydroxide concentration
can be calculated using the following equation:

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