Final answer:
To calculate the hydrogen ion concentration in a basic solution with a pH of 8.11, use the formula [H+] = 10^-pH. After inserting the given pH, the concentration of [H+] is approximately 7.76 × 10^-9 M.
Step-by-step explanation:
The student is asking how to calculate the concentration of hydrogen ions ([H+]) in a basic solution, given that the pH of the solution is 8.11. To find the concentration of hydrogen ions, we use the formula:
pH = -log[H+]
From this, we can solve for [H+] by rearranging the formula:
[H+] = 10-pH
Substituting 8.11 for pH, the calculation becomes:
[H+] = 10-8.11
To further simplify, we use a calculator to find the value of 10-8.11, which gives us:
[H+] ≈ 7.76 × 10^-9 M
This tells us the concentration of hydrogen ions in a solution with a pH of 8.11 is approximately 7.76 × 10-9 moles per liter (M).