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Tautomerism

Acetic acid h...

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Acetic acid has a pKa of 4.8, ethanol has a pKa of 16.0. What are the major species present, when acetic acid and ethanol are added to water and then the pH is adjusted to 7.0? (a)CH3CO2H & CH3CO2OH (b)CH3CH2O- & CH3CH2OH (c)CH3CO2H & CH3CH2O- (d)CH3CO2- & CH3CH2OH

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Q. A buffer of acetic acid

(p K_{a} = 4.8)

with sodium acetate will be, when

{C H}_{3} C O O H

{C H}_{3} C O O N a

are present in equivalent amounts has pH limits equal to:

Q. A solution consists of

1

C H_{3} C O O H

C H_{3} C O O N a

p K a

of acetic acid is

4.8

p H

of the solution, when

0.1

N a O H

Q. The pH of solution containing

0.10 M

sodium acetate and

0.03 M

acetic acid is: (

p K_{a}

{C H}_{3} C O O H = 4.57

)

20

0.1

M acetic acid is mixed with

10

ml of sodium acetate.

p K_{a}

C H_{3} C O O H

4.8

, then the concentration of sodium acetate, if

p H

of the mixture is

4.8

Q. To produce a buffer solution that has a pH of 5.270 with already existing solution that contains 10.0 mmol of acetic acid in 1L of solution. How many millimoles of sodium acetate to added to this solutions?
When

p K_{a}

of acetic acid is 4.752.

l o g 32.96 = 1.518

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