In chemistry, the pH of a solution is a measure of the acidity or alkalinity of the solution. Water has a pH of 7 and in general, acids gave a pH less than 7 an

Question

In chemistry, the pH of a solution is a measure of the acidity or alkalinity of the solution. Water has a pH of 7 and in general, acids gave a pH less than 7 and alkaline solutions have a pH hreater than 7. Find the pH of a solution with a hydronium ion concentration of 5.3*10^-7 moles/liters. Round the answer to 2 decimal places

Answer 1

pH= -log[H3O+]      Note: a hydronium ion is written as H3O+

 

In this case, the concentration of H3O+ = [H3O+]= 5.3 * 10^-7

 

pH= -log[5.3*10^-7] = 6.275, which rounds to 6.28