Question

-12 M?

Answer 1

Answer:

1 × 10⁻² M

Explanation:

What is the [H₃O⁺] in a solution with [OH⁻] = 1 × 10⁻¹² M?

Step 1: Given data

Hydroxile ion concentration ([OH⁻]): 1 × 10⁻¹² M

Step 2: Calculate the concentration of the hydronium ion

Let's consider the self-dissociation of water.

2 H₂O(l) ⇄ H₃O⁺(aq) + OH⁻(aq)

We can calculate the concentration of the hydronium ion using the ion product of water.

Kw = 10⁻¹⁴ = [H₃O⁺] [OH⁻]

[H₃O⁺] = 10⁻¹⁴ / [OH⁻] = 10⁻¹⁴ / 1 × 10⁻¹² = 1 × 10⁻² M