Determine the pOH of 0.0015 M NaOH solution Question 87Select one: a. 12.5 b. 12.5 c. 11.2 d. 9.7 e. 2.8
Question
Determine the pOH of 0.0015 M NaOH solution
Question 87 Select one:
- a. 12.5
- b. 12.5
- c. 11.2
- d. 9.7
- e. 2.8
Solution
To determine the pOH of a 0.0015 M NaOH solution, we first need to understand that NaOH is a strong base, which means it completely ionizes in water. Therefore, the concentration of OH- ions is also 0.0015 M.
The pOH is calculated using the formula:
pOH = -log[OH-]
Substituting the given concentration into the formula gives:
pOH = -log(0.0015)
Calculating this gives a pOH of approximately 2.8.
So, the correct answer is:
e. 2.8
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