7. a) A solution was prepared by dissolving 0.02 moles ethanoic acid in water to give 1 L of solution. What is the pH? b) to this solution was added 0.008 moles of concentrated sodium hydroxide (NaOH). What is the new pH? (In this question you may ignore changes in volume due to addition of NaOH).

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A: Below attached file showing the details answer.  All the best 

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Q: plz answer both questions I'll upvote

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Acid Base Titration

An acid-base titration is the method of quantitative analysis for determining the concentration of an acid and base by exactly neutralizing it with a standard solution of base or acid having known concentration.