A chemistry graduate student is given 300. mL of a 1.60 M benzoic acid (HC¸H,CO,) solution. Benzoic acid is a weak acid with K,=6.3 × 10¯°. what mass of NaC,H,CO, should the student dissolve in the HC H,CO, solution to turn it into a buffer with pH =3.68? 9. You may assume that the volume of the solution doesn't change when the NaC¸H¸CO, is dissolved in it. Be sure your answer has a unit symbol, and round it 6° 2 to 2 significant digits.

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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