What is the concentration of hydroxide ions in a solution with a pH of 11?

₹0.0

Question: What is the concentration of hydroxide ions in a solution with a pH of 11?

Options:

Correct Answer: 1 x 10^-3 M

Solution:

pOH = 14 - pH = 14 - 11 = 3. [OH-] = 10^-pOH = 10^-3 M.

What is the concentration of hydroxide ions in a solution with a pH of 11?

What is the concentration of hydroxide ions in a solution with a pH of 11?

Step 1: Understand that pH is a measure of how acidic or basic a solution is.
Step 2: Know that pH + pOH = 14. This means if you have the pH, you can find pOH.
Step 3: Since the pH is given as 11, calculate pOH by subtracting pH from 14: pOH = 14 - 11.
Step 4: Perform the subtraction: 14 - 11 = 3. So, pOH = 3.
Step 5: Now, to find the concentration of hydroxide ions [OH-], use the formula: [OH-] = 10^-pOH.
Step 6: Substitute pOH into the formula: [OH-] = 10^-3.
Step 7: Calculate 10^-3, which equals 0.001 M. This means the concentration of hydroxide ions is 0.001 M.

No concepts available.