pH Levels The pH of a solution, measured on a scale from 0 to 14, is a measure of th...

pH Levels The pH of a solution, measured on a scale from 0 to 14, is a measure of the acidity or alkalinity of that solution. Acidity/alkalinity (pH) is a function of hydronium ion H₃O⁺ concentration. The table shows the H₃O⁺ concentration and associated pH for several solutions.

a. Find a log model for pH as a function of the H₃O⁺ concentration.

b. What is the pH of orange juice with H₃O⁺ concentration 1.56 . 10^-3 ?

c. Black coffee has a pH of 5.0. What is its concentration of H₃O⁺ ?

d. A pH of 7 is neutral, a pH less than 7 indicates an acidic solution, and a pH greater than 7 shows an alkaline solution. What H₃O⁺ concentration is neutral? What H₃O⁺ levels are acidic and what H₃O⁺ levels are alkaline