A sample of a certain monoprotic weak acid was dissolved in water and titrated with 0.125 M NAOH, requiring 16.00 mL to reach the equivalence point. During the titration, the pH after adding 2.00 mL NaOH was 6.912. Calculate Ka for the weak acid. Calculate the pH of a solution at the equivalence point when 200.0 mL of a 0.10 M solution of acetic acid (HC;H;O3), which has a K, value of 1.4 x 104, is titrated with a 0.10 M KOH solution.

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Vitamins and Coenzymes

A class of organic compounds needed in the human body for normal activities is known as vitamins. They are characterized into two parts depending upon their solubility in water. They can act as coenzymes, cofactors, or prosthetic groups for enzymes.