posted by .

the ph of a .030M C2H5 COOH solution is 3.20. What is this acids Ka?

  • chemsitry -

    Convert pH to H^+).
    pH = -log(H^+)
    3.20 = -log(H^+)
    I get 6.3E-4 but you should confirm that.
    .....C2H5COOH ==> H^+ + C2H5COO^-

    Ka = (H^+)(C2H5COO-)/(C2H5COOH)
    Substitute from the ice chart and solve for Ka. Check all of those numbers to make sure I punched the right numbers.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. chem

    The (aq) solution with the lowest freezing temperature would be which of the following: 0.010M NaCl 0.020M NaCl 0.030M C6H1206 0.030M NaNO3 0.030M HC2H3O2 The NaCl and the NaNO3 break up into two particles each. The sugar does not, …
  2. Chemistry-Question 3

    A 4.86 kg sample of a solution of the solute chloroform in the solvent (C2H5)2O that has a concentration of 1.91 pph by mass chloroform is available. Calculate the amount (g) of CHCl3 that is present in the sample. Molar Mass (g/mol) …
  3. chemistry

    Calculate the volume ( mL ) of the solute C2H5OH and the mass ( g ) of the solvent diethyl ether that should be mixed to produce 3.46 kg of a solution that is 1.31 m C2H5OH. volume ( mL ) of the C2H5OH mass ( g ) of the (C2H5)2O Molar …
  4. science(Chemistry)

    Calculate the concentration of the NaOH solution. If 30,0cm3 of a standard oxalic acid[(COOH)2] solution of concentration 0,5,is used to neutralize 25,0 cm3 of a sodium hydroxide (NaOH) solution. The balanced chemical equation …
  5. Chemistry

    CH3(C2H5)CHC(C2H5)UCH(CH3)CH((C2H5)2) Looking for skeletal diagram and formula
  6. Chemistry

    Diethylamine (C2H5)2NH, is a weak base that ionizes in water,a 0.600 M solution of (C2H5)2NH is 4.65% ionized at 25 degrees Celsius. -Calculate the pH of the solution. -Calculate the Kb for diethylamine.
  7. Chemistry

    One chirality of CH3CHCICOOH is shown below. COOH | C H3C/ \CI - - - H Identify the image(s) below that excibit the opposite chirality. Select all that apply. (a) COOH (b) H | | C C _ | _ / \ _ | _ H3C CI _ | _ _ _ | _ _ CI | CH3 _ …
  8. chemistry

    Which of the following acids is expected to be the strongest acid?
  9. chemistry

    Suppose that after measuring the pH of 1.05 M HCl solution, three drops (0.20 mL) of the solution remain behind on the pH electrode. a) When this electrode is then dipped into 100 mL of pure distilled water, show by calculation that …
  10. chemistry

    5. The tetraethyl lead [Pb(C2H5)4] in a 25.00-mL sample of aviation gasoline was shaken with 15.00mL of 0.02095M I2. The reaction is: Pb(C2H5)4 + I2  Pb(C2H5)3I + C2H5I. After the reaction was complete, the unused I2 was titrated …

More Similar Questions