7. After 0.050 mole of hydrofluoric acid is dissolved in 200 mL of aqueous solution, it...
7. After 0.050 mole of hydrofluoric acid is dissolved in 200 mL of aqueous solution, it is found that 7.90 % of the acid has dissociated at equilibrium. a. Calculate the equilibrium concentrations of H2O, undissociated hydrofluoric acid (HF), and conjugate weak base of hydrofluoric acid. b. Calculate the K, value for hydrofluoric acid
After 0.050 mole of hydrofluoric acid is dissolved in 200 mL of aqueous solution, it is found that 7.90 % of the acid has dissociated at equilibrium. a. Calculate the equilibrium concentrations of H:0, undissociated hydrofluoric acid (HF), and conjugate weak base of hydrofluoric acid. b. Calculate the K, value for hydrofluoric acid 214
Module 10 Homework Refer to the table at the beginning of the section for K. and K. values. 77 x 10-M Ba(OH), solution? What is the 1. What is the H.O ion concentration pH? 2. Calculate the OH ion concentration of a 6.2 x 10' M HNO, solution. 3. Calculate the pH of an aqueous solution containing 6.02 x 10 H,O' ions per liter. 4. Calculate the pH of a 1.2 M HCN solution. K.-4.9 x 100 for HCN 5....
Calculate the pH of a 0.353 M aqueous solution of hydrofluoric acid (HF, Ka 7.2x10 t) and the equilibrium concentrations of the weak a and its co base. pH HF equilibrium F leg brium M.
1. A 35.6 mL sample of a 0.568 M aqueous hydrofluoric acid solution is titrated with a 0.330 M aqueous barium hydroxide solution. What is the pH after 13.0 mL of base have been added? pH = 2. When a 15.4 mL sample of a 0.394 M aqueous hydrofluoric acid solution is titrated with a 0.446 M aqueous barium hydroxide solution, what is the pH at the midpoint in the titration? pH =
Calculate the pH of a 0.0167 M aqueous solution of formic acid (HCOOH, K, = 1.8x10-4) and the equilibrium concentrations of the weak acid and its conjugate base. pH [HCOOH)equilibrium [HCOO equilibrium
A 42.0 mL sample of a 0.309 M aqueous hydrofluoric acid solution is titrated with a 0.340 M aqueous barium hydroxide solution. What is the pH after 11.8 mL of base have been added? pH =
A 44.9 mL sample of a 0.384 M aqueous hydrofluoric acid solution is titrated with a 0.413 M aqueous potassium hydroxide solution. What is the pH after 24.4 mL of base have been added? РH3
A 41.0 mL sample of a 0.393 M aqueous hydrofluoric acid solution is titrated with a 0.285 M aqueous potassium hydroxide solution. What is the pH after 32.2 mL of base have been added? pH =
A 32.3 mL sample of a 0.343 M aqueous hydrofluoric acid solution is titrated with a 0.244 M aqueous potassium hydroxide solution. What is the pH after 15.3 mL of base have been added? pH = __