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Select all that applyA solution has a hydroxide-ion concentration of 4.0 × 10–8M. Which are the pOH and pH of the solution?Multiple select question.pH = 6.00pOH = 8.00pH = 6.60pOH = 7.40

Question

Select all that applyA solution has a hydroxide-ion concentration of 4.0 × 10–8M. Which are the pOH and pH of the solution?Multiple select question.pH = 6.00pOH = 8.00pH = 6.60pOH = 7.40

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Solution

First, we need to understand the definitions of pOH and pH.

pOH is the negative logarithm (base 10) of the concentration of hydroxide ions. pH is the negative logarithm (base 10) of the concentration of hydrogen ions.

Given that the hydroxide-ion concentration is 4.0 × 10–8 M, we can calculate the pOH as follows:

pOH = -log[OH-] pOH = -log(4.0 × 10–8) pOH = 7.40

Next, we know that pH + pOH = 14 at 25 degrees Celsius. So, we can calculate the pH as follows:

pH = 14 - pOH pH = 14 - 7.40 pH = 6.60

So, the correct answers are: pOH = 7.40 pH = 6.60

This problem has been solved

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