Acetic acid (CH3COOH) and trifluoroacetic acid (CF3COOH) are shown by these particulate models. The Ka for trifluoroacetic acid is 104 times greater than acetic acid. Use the models to account for the differences in magnitude for the Ka constant. The yellow atoms are fluorine, the red atoms are oxygen, the black atoms are carbon, and the white atoms are hydrogen.  Write the formulas for the conjugate bases for the two structures.The conjugate base of acetic acidThe conjugate base of trifluoroacetic acid

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Asked Oct 22, 2019
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Acetic acid (CH3COOH) and trifluoroacetic acid (CF3COOH) are shown by these particulate models. The Ka for trifluoroacetic acid is 104 times greater than acetic acid. Use the models to account for the differences in magnitude for the Ka constant. The yellow atoms are fluorine, the red atoms are oxygen, the black atoms are carbon, and the white atoms are hydrogen. 

 

Write the formulas for the conjugate bases for the two structures.

The conjugate base of acetic acid

The conjugate base of trifluoroacetic acid

 
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Expert Answer

Step 1

Bronsted –Lowry conjugate acid-Base pairs:

When an acid is dissolved in water, the acid donates a proton to water to form a new acid (conjugate acid) and a new base (conjugate base).

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Conjugate acid - base pair H20 CH;COОН CHясоо Hзо Weak acid Weak base Strong acid Strong base Conjugate acid - base pair

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Step 2

The formula for the conjugate base of acetic acid an...

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Conjugate acid: Protonated Base that gets results is called conjugate acid of the given base. A H2 НА In above reaction, the acid HA donates proton H and becomes A- (is known as conjugate base) Conjugate Base: Deprotonated Acid that gets results is called conjugate Base of the given Acid H A НА In above reaction, the base A gets accepts proton H and becomes HA (is known as conjugate acid)

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