To find the hydroxide ion concentration in a solution with a pH of 3.5, we can use the formula:
pOH = 14 - pH
Since pOH and hydroxide ion concentration are related through the formula:
pOH = -log[OH-]
We can rearrange the formula to solve for [OH-]:
[OH-] = 10^(-pOH)
Substituting the value of pOH calculated using the pH given:
pOH = 14 - 3.5
pOH = 10.5
[OH-] = 10^(-10.5)
Calculating:
[OH-] = 3.16 x 10^(-11) M
Therefore, the hydroxide ion concentration in a solution with a pH of 3.5 is 3.16 x 10^(-11) M.
The hydroxide ion concentraion in a solution with a pH of 3.5
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