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Which of the following will most effectively resist a change in pH when 5 drops

ID: 823562 • Letter: W

Question

Which of the following will most effectively resist a change in pH when 5 drops of 0.1 M NaOH are added to it?

Which of the following will most effectively resist a change in pH when 5 drops of 0.1 M NaOH are added to it?

a solution that is 0.1 M acetic acid and 0.1 M sodium acetate

0.01 M acetic acid

deionized water

a solution that is 0.01 M acetic acid and 0.01 M sodium acetate

a solution that is 0.1 M acetic acid and 0.1 M sodium acetate

0.01 M acetic acid

deionized water

a solution that is 0.01 M acetic acid and 0.01 M sodium acetate

Explanation / Answer

Answer will be a solution that is 0.1 M acetic acid and 0.1 M sodium acetate (option A)

bec it is a buffer solution (Acidic buffer)

so when NaOH is added

OH- react with H+(from acid) to give H2O

Small amout of NaOH is added so pH will remain consant.

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