Find the hydronium ion [H3O^+] concentration for the substance with the given pH.

Question

The formula for the pH of a solution of hydronium ions given by the logarithmic equation pH=-log[H3O^+], where [H30^+] is the hydronium ion concentration. Find the hydronium ion [H3O^+] concentration for the substance with the given pH.

 

Fruit juice, 3.6

Answer 1

pH = -log₁₀[H₃O⁺]

 

Given a pH, 

 

[H₃O⁺] = 10^-pH

 

For pH = 3.6,

 

[H₃O⁺] = 10^-3.6 = 2.512 x 10^-4