The pH of tomatoes is normally in the range of 4.1-4.4. If the pH of tomatoes is too high nutrient deficiencies and toxicity will occur. Tomatoes from a local grocery store have a pH of 4.2. What is the hydrogen ion concentration for the tomatoes from this store?
A) -4.20e+01
B) 6.31e-05
C) 4.20e+00
D) 1.58e+04
E) 1.50e-02

Question

Quizplus · Accepted Answer

The pH of 4.2 can be converted to hydrogen ion concentration by using the formula [H+] = 10^(-pH). Therefore, [H+] = 10^(-4.2) = 6.31e-05. Choice B is the only option with the correct value for the hydrogen ion concentration.

The PH of Tomatoes Is Normally in the Range of 4.1-4.4