Question

Titration of citric acid in lemon juice with sodium hydroxide

Answer 1

Citric acid powder is sold for home use with no restrictions. The pH of 0.033 M citric acid is about 2.2, which is slightly higher than that of lemon juice.4 The 0.1 M sodium hydroxide and the phenolphthalein indicator are more hazardous.

Answer 2

3 NaOH (aq) + H3C6H5O7 (aq) --> Na2C6H5O7 (aq) + 3 H2O
Hope this Helps.....
THIS IS REACTION BETWEEN SODIUM HYDROXIDE AND Critic ACID