Question

A student obtains a beaker containing a solution that is determined to have a hydrogen ion

concentration (H+) of 6.7x10-14. Based on this information, please answer the following
questions:
a) What is the pH of the solution?
b) is the solution acidic, neutral or basic?

Answer 1

pH = 13.1

Basic

Step-by-step explanation:

Step 1: Given data

Hydrogen ion concentration ([H⁺]): 6.7 × 10⁻¹⁴ M

Step 2: Calculate the pH of the solution

We will use the definition of pH.

pH = -log [H⁺]

pH = -log 6.7 × 10⁻¹⁴ = 13.1

• When pH < 7, the solution is acid.
• When pH = 7, the solution is neutral.
• When pH > 7, the solution is basic.

Since pH > 7, the solution is basic.