Question

What is the hydroxide ion concentration of a solution with a hydrogen ion concentration of 7.58 × 10-10 M?

Answer 1

p
H
≅
4

Step-by-step explanation:
p
H
=
−
log
10
[
H
3
O
+
]
.
We are given that
[
H
3
O
+
]
=
7.10
×
10
−
5
⋅
m
o
l
⋅
L
−
1
.
And thus
p
H
=
−
log
10
(
7.10
×
10
−
5
)
≅
4