CHEMISTRY

7. At pH 7.4 a weak organic acid with a pKa of 6.4 would be 60% ionized


% Ionization =[(H^+)/(acid)]*100 = 3.98 x 10^-8
HA ==> H^+ + A^
K = (H^+)(A^-)/(HA)
K = (H^+)(A^-)/[HA-(H^+)] Plug in 3.98E-7

asked by ryan
  1. I don't get 60%. Is that your answer? An answer from your notes?

    posted by DrBob222

Respond to this Question

First Name

Your Response

Similar Questions

  1. Chemistry

    Part A: Unknown Acid use 1gram and mix with 120 mL of distilled water Determine the concentration of the acid by titrating with 0.0998 M of NaOH Concentration of NaOH= 0.0998M Volume of NaOH= 3.5 mL # moles of NaOH= Initial
  2. chemistry

    You need to determine the pKa of a weak, monoprotic acid. You add 0.500 moles of the acid to 1.00 L of water. The resulting pH was 1.87. What is the pKa of this weak acid? You may ignore the autoionization of water. 2.74 3.43 5.38
  3. organic chem

    . Use the Henderson-Hasselbach equation: pH = pKa + log [A-]/[AH], where A- is the conjugate base and AH is the weak acid. Calculate the pH of an acetate buffer in which the acetate concentration [CH3COO-] is 3.5 times greater
  4. chemistry

    7. At pH 7.4 a weak organic acid with a pKa of 6.4 would be what percent ionized.
  5. chemistry

    7. At pH 7.4 a weak organic acid with a pKa of 6.4 would be ionized at what percent?
  6. chem

    7. At pH 7.4 a weak organic acid with a pKa of 6.4 would be ionized at what percent?
  7. chemistry

    7. At pH 7.4 a weak organic acid with a pKa of 6.4 would be ionized at what percent?
  8. chem need assistance

    7. At pH 7.4 a weak organic acid with a pKa of 6.4 would be ionized at what percent?
  9. college-chemistry

    calculate the ph of a buffer solution prepared by adding 0.397 mole of the sodium salt of a weak organic acid HA to 0.474 L of 1.023m acid HA with pka=4.82 and diluting to 1.00 L WITH WATER
  10. Chem

    Please someone Help!! Acetic acid, CH3COOH, is a weak organic acid, pKa 4.47. Determine the position of the equilibrium for the reaction of acetic acid with NaHCO3, and draw the species that predominates at equilibrium.

More Similar Questions