Calculate the PH of a solution that is 0.175 M benzoic acid and 0.110M sodium benzoate, a salt whose anion is the conjugate base of benzoic acid . Express the PH to at least two decimal places .

A chemist dissolves 698. mg of pure nitric acid in enough water to make up 350. mL of solution. Calculate the pH of the solution. Be sure your answer has the correct number of significant digits.

A chemist dissolves  125.mg  of pure perchloric acid in enough water to make up  160.mL  of solution. Calculate the pH of the solution. Be sure your answer has the correct number of significant digits.

The acidity of a solution is measured by its pH. If Ht represents the concentration of hydrogen ions (in moles/liter) in the solution, the pH is defined by pH - log Ht| Based on careful measurements and calculations, a chemist examines two solutions and asserts: "The hydrogen ion concentration of Solution A is 65.86% greater than the hydrogen ion concentration of Solution B." If the pH of solution B is 10.00, determine the pH of Solution A. Report your answer to two decimal places. Solution A has pH equal to Number (Report to the nearest 0.01)

The acid dissociation constant K, of carbonic acid (H,Co,) is 4.5x 10'. Calculate the pH of a 3.4M solution of carbonic acid. Round your answer to 1 decimal place. pH =

A chemist dissolves 595. mg of pure nitric acid in enough water to make up 360. mL of solution. Calculate the pH of the solution. Be sure your answer has the correct number of significant digits.

A chemist dissolves 508. mg of pure perchloric acid in enough water to make up 400. mL of solution. Calculate the pH of the solution. Be sure your answer has the correct number of significant digits. 0 0x₁ x10 X

Sodium hypochlorite solution is also known as bleach. It contains the hypochlorite ion ClO-.  (a) Write an equation for the reaction between hypochlorite ion and ammonium ion. Label the acids and bases in the forward and reverse reactions. Identify the two conjugate acid-base pairs. (b) This equilibrium favors the reactants. Which of the acids is stronger and donates protons more readily?

10 The acid dissociation constant K, of hydrocyanic acid (HCN) is 6.2 × 10 a Calculate the pH of a 4.9M solution of hydrocyanic acid. Round your answer to 1 decimal place. pH ?

A chemist dissolves 293. mg of pure potassium hydroxide in enough water to make up 160. mL of solution. Calculate the pH of the solution. (The temperature of the solution is 25 °C.) Round your answer to 3 significant decimal places. ☐ x10