4, Calculate the [OH1 pH and percent ionization for a 0.2M aqueous solution of NH,. K,- 1.8 x 10 5. Calculate the [H1 and pH of a buffer solution that is 0.10 M CH,COOH and 0.20 M NaCH,COO. 6. How many grams of NH.Cl are needed to 500 mL of a buffer solution that is 0.10 M NH, with a pH of 9.15?
For a 0.7M HF solution with a Ka= 6.6x10-4 What is the H30+ concentration: Whats id the pH:
What is the pH of the solution when 0.2M HCl, 0.4M NaOH and 0.2 M HCN is mixed, assuming the volume is constant. (Ka(HCN)= 5x10-10)
What is pH when 0.2M acetic acid (Ka = 1.8 times 10^-5) is allowed to go to equilibrium. HAc + H_2O = = Ac^- + H_3O^+
Calculate the thoeretical pH of Solution B (10mL of 0.2M acetic acid and 10 mL of 0.1M sodium hydroxide). Then calculate the theoretical pH after an addition of 1 mL of 0.0992M of HCl. Initial pH: 4.66, pH after addition of acid: 4.66 Calculate the theoretical pH of solution B (10 mL of 0.2M sodium acetate and 10 mL of 0.1M HCl). Then calculate the theoretical pH after an additon of 1 mL of 0.997M of NaOH. Initial pH: 4.81,...
answer 11a and 11b
11. The initial pH of a 0.2M arginine solution is 14. a. What is the predominant structure of arginine in solution at this pH? b. Draw the titration curve that would result if this solution were titrated with IM HCl to pH 7.
whats the name of this reaction?
CH3-C=C-H + Nach Haq CH3C=Co-Nat
A. Calculate the pH of a solution containing 0.2M lactic acid (pKa = 3.86) B. Calculate the pH of a solution of 1x10^-9 M HCl (strong acid) in distilled water. Show your work.
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.
what’s the ph of 0.2M solution of H2SO4? presumed that the sulfuric acid will easily give up its first hydrogen ion when dissolved in water, but as easily give up its second hydrogen ion