The hydroixide ion concentration in a solution with a pH of 3.50
The hydroxide ion concentration, [OH-], can be calculated using the formula:
[OH-] = 10^(-pOH)
Given that the pH is 3.50, we can calculate the pOH value:
pOH = 14 - pH
pOH = 14 - 3.50
pOH = 10.50
Now, we can substitute the pOH value into the formula to calculate the hydroxide ion concentration:
[OH-] = 10^(-pOH)
[OH-] = 10^(-10.50)
Using a calculator, we find that [OH-] is approximately 3.162 x 10^(-11) M.