For the buffer solution of weak acid HA and its conjugate base salt NaA, [HA] and [A] are expressed as follows: [HA] = CHA - [H3O*]+ [OH] %3D [A-] = CNAA + [H30*1- [OH] Which one of the following is (are) correct? I. Proton and hydroxide concentrations may be negligible if the Ka and Kp values are <105 II. Proton and hydroxide concentrations may be negligible if the acid and base concentrations are 0.1 M II. Proton and hydroxide concentrations may be negligible if the acid and base concentrations are 0.00001 M

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Chapter1: Chemical Foundations
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For the buffer solution of weak acid HA and its conjugate base salt NaA, [HA] and [A]
are expressed as follows:
[HA] = CHA - [H3O*] + [OH]
[A-J = CNAA + [H30*1- [OH]
Which one of the following is (are) correct?
1. Proton
nd hydroxide concentrations may be
if the Ka and Kb values are
<105
IL. Proton and hydroxide concentrations may be negligible if the acid and base
concentrations are 0.1 M
III. Proton and hydroxide concentrations may be negligible if the acid and base
concentrations are 0.00001 M
Select one:
a.
Il and II
Transcribed Image Text:女 For the buffer solution of weak acid HA and its conjugate base salt NaA, [HA] and [A] are expressed as follows: [HA] = CHA - [H3O*] + [OH] [A-J = CNAA + [H30*1- [OH] Which one of the following is (are) correct? 1. Proton nd hydroxide concentrations may be if the Ka and Kb values are <105 IL. Proton and hydroxide concentrations may be negligible if the acid and base concentrations are 0.1 M III. Proton and hydroxide concentrations may be negligible if the acid and base concentrations are 0.00001 M Select one: a. Il and II
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