Question

Calculate the pOH of a 0.0143 M NaOH solution at 25 ⁰C.


1.845


6.993 x 10⁻¹³


12.155


-1.845

Answer 1

Answer:

A.) 1.845

Explanation:

You can find the pOH using the following equation:

pOH = -log[OH⁻]

Since NaOH dissociates into 1 Na⁺ and 1 OH⁻, the concentration of both ions is 0.0143 M.

pOH = -log[OH⁻]

pOH = -log[0.0143]

pOH = 1.845