Question

What is the [OH–] in a solution of pH 3.00?

A.
1.0 x 10–9 M
B.
1.0 x 10–6 M
C.
1.0 x 10–3 M
D.
1.0 x 10–11 M
E.
11.00 M

Answer 1

D)1.0 x 10–11 M

Step-by-step explanation:

Answer 2

D - 1*10^-11

Step-by-step explanation:

For this answer, we use the formula

pH + pOH = 14

we can write it like this

pOH = 14 - pH

When the pH = 3.00

pOH= 14 - 3

= 11

Now the OH can be calculated from the POH by using this formula

OH = 10^pOH

OH = 10^11

= 1* 10^11