Experiment 1 Online Tutorial >> Gravimetric Analysis >> Evaluation Questions

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Experiment 1 - Gravimetric Analysis

Evaluation Question 1

Part (a)

An impure potassium chloride sample weighing about 0.56 g was dissolved in water. Calculate the volume of 2.0 M AgNO₃ needed to completely precipitate the chloride ions. (Give your answer to 2 significant figures.)

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Part (b)

The unknown sample from Part (a) was found to have a mass of 0.5577 g. The mass of silver chloride that precipitated was 0.8517 g. What is the percentage chloride in the unknown? (Please give your answer to 4 significant figures)