Question

Determinatio of sulphonic acid by acid base titration

Answer 1

Answer:

phenolphthalein

Substances such as phenolphthalein, which can be used to determine the pH of a solution, are called acid-base indicators. Acid-base indicators are either weak organic acids or weak organic bases. The anion of methyl orange, In−, is yellow, and the nonionized form, HIn, is red........................

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Answer 2

Explanation:

Determination of sulfuric acidconcentration is very similar to titration of hydrochloric acid, although there are two important diferences. First of all, as sulfuric acid is diprotic, stoichiometry of the neutralization reaction is not 1:1, but 1:2 (1 mole ofacid reacts with 2 moles of sodium hydroxide)