Answer:
Option A) 2.6 × 10⁻¹¹ M, acidic.
Explanation:
The ion-product constant of water gives a relationship between
and
:
.
The exact value of depends on the temperature. Under
,
.
The question states that . As a result,
.
- A solution is acidic if
.
- A solution is neutral if
.
- A solution is acidic if
.
for this solution. As a result, this solution is acidic.