Find the pH of each mixture of acids. a. 0.075 M in HNO_3

Question

Find the pH of each mixture of acids. a. 0.075 M in HNO₃ and 0.175 M in HC₇H₅O₂ b. 0.020 M in HBr and 0.015 M in HClO₄ c. 0.095 M in HF and 0.225 M in HC₆H₅O d. 0.100 M in formic acid and 0.050 M in hypochlorous acid

Accepted Answer

Identify the type of acids in each mixture: strong or weak. Strong acids completely dissociate in water, while weak acids do not.. For each mixture, calculate the concentration of hydrogen ions [H⁺] contributed by the strong acids, as they dissociate completely. Use the formula [H⁺] = concentration of the strong acid.. For weak acids, use the acid dissociation constant (Ka) to find the concentration of hydrogen ions. Set up the equilibrium expression for the weak acid: Ka = [H⁺][A⁻]/[HA], and solve for [H⁺].. Add the [H⁺] from the strong acid and the [H⁺] from the weak acid to find the total [H⁺] in the solution.. Calculate the pH of the solution using the formula pH = -log[H⁺].

Find the pH of each mixture of acids. a. 0.075 M in HNO3 and 0.175 M in HC7H5O2 b. 0.020 M in HBr and 0.015 M in HClO4 c. 0.095 M in HF and 0.225 M in HC6H5O d. 0.100 M in formic acid and 0.050 M in hypochlorous acid

Find the pH of each mixture of acids. a. 0.075 M in HNO₃ and 0.175 M in HC₇H₅O₂ b. 0.020 M in HBr and 0.015 M in HClO₄ c. 0.095 M in HF and 0.225 M in HC₆H₅O d. 0.100 M in formic acid and 0.050 M in hypochlorous acid