What is the hydroxide ion concentration in an aqueous solution where the pH = 5?
A)The hydronium ion concentration equals 1 × $10 ^ { - 9 }$ .
B)The hydronium ion concentration equals 1 × $10 ^ { - 7 }$ .
C)The hydronium ion concentration equals 1 × $10 ^ { - 5 }$ .
D)The hydronium ion concentration equals 1 × $10 ^ { - 3 }$

Question

Quizplus · Accepted Answer

The pH is defined as the negative logarithm (base 10) of the hydronium ion concentration. Therefore, if the pH is 5, the hydronium ion concentration is $10^{-5}$ M.

What Is the Hydroxide Ion Concentration in an Aqueous Solution 10−910 ^ { - 9 }10−9

What Is the Hydroxide Ion Concentration in an Aqueous Solution $10 ^ { - 9 }$