Step 1:

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The initial amount of [HC₂H₃O₂] is 0.2 mol.

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The initial amount of [NaOH] is 0.03 mol.

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The chemical equation is $\"\"$ .

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$\"\"$
Initial Amount	$\"\"$	$\"\"$	$\"\"$
Change in Amount	$\"\"$	$\"\"$	$\"\"$
Equilibrium amount	$\"\"$	$\"\"$	\ $\"\"$ \

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Step 2:

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Concentration of [HC₂H₃O₂] is $\"\"$ .

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Concentration of [NaC₂H₃O₂] is $\"\"$ .

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Definition of pH:

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$\"image\"$

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$\"\"$ of acetic acid is $\"\"$ .

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$\"\"$

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pH of the solution is 4.0162.

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Solution:

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pH of the solution is 4.0162.