How can we quantitatively determine the chloride content in an unknown soluble s

Question

How can we quantitatively determine the chloride content in an unknown soluble salt by gravimetric analysis?

Select one:

a. dissolve the unknown salt in water, precipitate the chloride ion as silver chloride, collect silver chloride and calculate the chloride content in the original salt by using stoichiometry;

b. dissolve the unknown salt in water, titrate the solution with silver nitrate and calculate the chloride content in the original salt based on the titration curve;

c. all options are incorrect;

d. dissolve the unknown salt in water, measure the absorbance of the solution and calculate the chloride content in the original salt based on the Beer-Lambert law;

e. add dilute nitric acid in the solution;

Explanation / Answer

To quatitatively determine the chloride content in an unknown soluble salt the method would be precipitation,

a. dissolve the salt in water, precipitate the chloride ion as silver chloride, collect silver chloride and calculate the chloride content in the original salt by using stoichiometry.

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