Chemistry, asked by Hayasuleman424, 2 months ago

how many moles of sodium acetate must be added to 1L of 0.2M acetic acid to make buffer of pH 5.Ka =1.8×10^-5​

Answers

Answered by PrasadMaity
0

Answer:

Applying Henderson's equation

pH=log

[Acid]

[Salt]

−logK

a

log

[Acid]

[Salt]

=4.5+log1.8×10

−5

=−0.2447

[Salt]=0.5692×[Acid]

[Salt]

[Acid]

=0.063

[Acid]=

1.5692

0.063

=0.040M

no of moles =n=0.04×1=0.04mol

[Salt]=(0.063−0.040)=0.023M

no of moles =n=0.023×1=0.023

Explanation:

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Answered by ishansingh020807
0

Answer:

already some one answer

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