Tests show that the hydrogen ion concentration of a sample of apple juice is 0.0003 and that of ammonia is 3.1 x 10^-9. Find the pH of each liquid using the formula pH = - log |H3 0^+| where H3 0^ + is the hydronium ion concentration.

The pH value of the apple juice is

A. 1.75

B. 2.1

C. 3.5

D. 8.11

The pH value of ammonia is

A. 1.1

B. 5.4

C. 7.0

D. 8.9

Question

Guest

Mathematics

8 August, 08:18

Tests show that the hydrogen ion concentration of a sample of apple juice is 0.0003 and that of ammonia is 3.1 x 10^-9. Find the pH of each liquid using the formula pH = - log |H3 0^+| where H3 0^ + is the hydronium ion concentration.

The pH value of the apple juice is

A. 1.75

B. 2.1

C. 3.5

D. 8.11

The pH value of ammonia is

A. 1.1

B. 5.4

C. 7.0

D. 8.9

+5

Answers (1)

Know the Answer?

Keenan · Answer 1

PH can be calculated using the following equation

pH = - log [H₃O⁺]

for apple juice the hydronium / hydrogen ion concentration is 0.0003

pH = - log (0.0003)

pH = 3.5

correct answer is C

For ammonia

pH = - log (3.1 x 10⁻⁹)

pH = 8.5

answer should be 8.5