2. Write the dissociation equation and equilibrium constant expression for the dissociation of the following weak bases a. Methylamine, CH3NH2, Kb = 3.5 x 10-4 b. formate ion, COOH Kb = 5.5 x 10-11 3. Calculate the [H3O*], [OH`], pH and pOH of a 0.120 M HNO2 (nitrous acid). Ка3 7.10х 10°4 4. Calculate the [OH'], [H3O*], pOH and pH of a 0.0750 M NH3 Ka NH4* = 5.70 x 10 -10 %3D 5. Calculate the pH and [H3O*] of a buffer solution prepared by dissolving 0.218 mol of NaC2H3O2 in 500. mL of 100 M HC2H3O2. Ka HC2H3O2 = 1.80 x 105

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Complete the answer from no. 2-5. Thank you!

2. Write the dissociation equation and equilibrium constant expression for the dissociation of the
following weak bases
a. Methylamine, CH3NH2, Kb = 3.5 x 10-4
b. formate ion, COOH Kb = 5.5 x 10-11
3. Calculate the [H3O*], [OH`], pH and pOH of a 0.120 M HNO2 (nitrous acid).
Ка3 7.10х 10°4
4. Calculate the [OH'], [H3O*], pOH and pH of a 0.0750 M NH3
Ka NH4* = 5.70 x 10 -10
%3D
5. Calculate the pH and [H3O*] of a buffer solution prepared by dissolving 0.218 mol of NaC2H3O2
in 500. mL of 100 M HC2H3O2. Ka HC2H3O2 = 1.80 x 105
Transcribed Image Text:2. Write the dissociation equation and equilibrium constant expression for the dissociation of the following weak bases a. Methylamine, CH3NH2, Kb = 3.5 x 10-4 b. formate ion, COOH Kb = 5.5 x 10-11 3. Calculate the [H3O*], [OH`], pH and pOH of a 0.120 M HNO2 (nitrous acid). Ка3 7.10х 10°4 4. Calculate the [OH'], [H3O*], pOH and pH of a 0.0750 M NH3 Ka NH4* = 5.70 x 10 -10 %3D 5. Calculate the pH and [H3O*] of a buffer solution prepared by dissolving 0.218 mol of NaC2H3O2 in 500. mL of 100 M HC2H3O2. Ka HC2H3O2 = 1.80 x 105
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