Question

1. What is the pH of a solution with a [H3O+] concentration of 4.32 x 10-2 M?

Answer 1

1. The pH of the solution is 1.36

2. The pH of the solution is 10.47

3. the concentration of [H₃O⁺] in the solution is 6.3×10⁻¹⁴ M

What is pH ?

This is simply a measure of the acidity / alkalinity of a solution.

The pH measures the hydrogen ion (hydronium ion) concentration while the poH measures the hydroxide ion concentration. It is expressed mathematically as

pH = –Log H₃O⁺

1. How to determine the pH

• [H₃O⁺] = 4.32×10⁻² M
• pH = ?

pH = –Log H₃O⁺

pH = –Log 4.32×10⁻²

pH = 1.36

2. How to determine the pH

• [H₃O⁺] = 3.4×10⁻¹¹ M
• pH = ?

pH = –Log H₃O⁺

pH = –Log 3.4×10⁻¹¹

pH = 10.47

3. How to determine the concentration of [H₃O⁺]

• pH = 13.2
• [H₃O⁺] = ?

pH = –Log H₃O⁺

13.2 = –Log H₃O⁺

Multiply through by -1

-13.2 = Log H₃O⁺

Take the anti-log of -13.2

H₃O⁺ = anti-log (-13.2)

H₃O⁺ = 6.3×10⁻¹⁴ M

Learn more about pH:

brainly.com/question/3709867

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