A sample weighing 1.731g contains a mixture of the triprotic citric acid, H3C6H5O7 and sodium sulfate, Na2SO4. The sample mixture was dissolved in water and then titrated with a 0.3550 M sodium hydroxide solution. It required 28.32mL of the base to completely neutralize the citric acid. What is the percent of sodium sulfate in the mixture?

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Precipitation Titration

Precipitation analysis is used to analyze drugs, and to measure the salt content in food and beverages. It is an important concept from the examination point of view many practical questions are asked on the topic. This topic is significant in the professional exams for both undergraduate and graduate courses, especially for