A sample of lemon juice has a pH of 3. What is the [OH-] concentration of the lemon juice?

Question

Responses
A 1111
B 1 X 10+31 X 10 +3
C 1 X 10-31 X 10 -3
D 1 X 10-11

Answer 1

D 1 X 10-11

Explanations:
To calculate the [OH-] concentration, you can use the relationship between pH and pOH:
pH + pOH = 14
In this case, pH = 3, so pOH = 14 - 3 = 11
To convert pOH to [OH-] concentration:
[OH-] = 10^(-pOH)
[OH-] = 10^(-11)
[OH-] = 1 X 10^(-11)