The percent ionization of chloroacetic acid is less than that of fluoroacetic acid. —с—с—ӧ—н C -- The percent ionizations cannot be compared without knowing the concentrations of the two acids. H The structure of haloacetic acids, XCH2COOH (where X is either F, Cl, Br, or 1), is shown above. The dissociation constants The percent ionizations cannot be compared without knowing the pH of the solution. and molar masses of four haloacetic acids are listed in the table below. The percent ionization of chloroacetic acid is greater than that of fluoroacetic acid. Acid pK. K. Molar Mass(g/mol) CLEAR ALL Fluoroacetic acid 2.59 2.57 x 10–3 78.0 Chloroacetic acid 2.87 1.35 × 10–3 94.5 Bromoacetic acid 2.90 1.26 x 10–3 138.9 lodoacetic acid 3.18 6.61 × 10–4 185.9 An aqueous solution contains small but equal concentrations of both chloroacetic and fluoroacetic acids. Which statement comparing the percent ionizations of the two acids in the solution is true?

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Chapter1: Chemical Foundations
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The percent ionization of chloroacetic acid is
less than that of fluoroacetic acid.
:*-C-C-ö-H
The percent ionizations cannot be compared
without knowing the concentrations of the two
acids.
The structure of haloacetic acids, XCH,COOH (where X is
The percent ionizations cannot be compared
without knowing the pH of the solution.
either F, Cl, Br, or 1), is shown above. The dissociation constants
and molar masses of four haloacetic acids are listed in the table
below.
The percent ionization of chloroacetic acid is
greater than that of fluoroacetic acid.
Acid
pK.
K.
Molar Mass(g/mol)
CLEAR ALL
Fluoroacetic acid
2.59
2.57 x 10–3
78.0
Chloroacetic acid
2.87
1.35 x 10–3
94.5
Bromoacetic acid
2.90
1.26 x 10-3
138.9
lodoacetic acid
3.18
6.61 × 10-4
185.9
An aqueous solution contains small but equal concentrations of
both chloroacetic and fluoroacetic acids. Which statement
comparing the percent ionizations of the two acids in the
solution is true?
エーO-
Transcribed Image Text:H. | || The percent ionization of chloroacetic acid is less than that of fluoroacetic acid. :*-C-C-ö-H The percent ionizations cannot be compared without knowing the concentrations of the two acids. The structure of haloacetic acids, XCH,COOH (where X is The percent ionizations cannot be compared without knowing the pH of the solution. either F, Cl, Br, or 1), is shown above. The dissociation constants and molar masses of four haloacetic acids are listed in the table below. The percent ionization of chloroacetic acid is greater than that of fluoroacetic acid. Acid pK. K. Molar Mass(g/mol) CLEAR ALL Fluoroacetic acid 2.59 2.57 x 10–3 78.0 Chloroacetic acid 2.87 1.35 x 10–3 94.5 Bromoacetic acid 2.90 1.26 x 10-3 138.9 lodoacetic acid 3.18 6.61 × 10-4 185.9 An aqueous solution contains small but equal concentrations of both chloroacetic and fluoroacetic acids. Which statement comparing the percent ionizations of the two acids in the solution is true? エーO-
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