Ph Study Guide Graded A+

Which statement best describes the pH of pure water? {Ans: It is neutral because the concentration of hydronium ions equals that of hydroxide ions.}Which describes an alkaline solution? {Ans: acidic (NOT CORRECT)}What is the equilibrium constant of pure water at 25°C? {Ans: 10-14}The pH of a solution decreases by 2.0. How does the hydronium ion concentration of the solution change? {Ans: increases to 100 times the original concentration}What is the pH of a solution with [H+] = 1.25 mc015-1.jpg 10-10 M? Use mc015-2.jpg. {Ans: 9.90}How can the pH of a solution be calculated if the pOH is known? {Ans: by subtracting the pOH from 14}