The chloride content in a sample is calculated based on the mass of AgCl. AgCl i

Question

The chloride content in a sample is calculated based on the mass of AgCl. AgCl is precipitated from the aqueous solution of this sample. Although AgCl is very insoluble in water, some salt is still left in the solution. It will cause the analytical result to be lower than the real value. How can we minimize the solubility of AgCl?

Select one:

a. add excess silver ions in the solution;

b. add silver ions slowly in the solution with gently stirring;

c. all options are correct;

d. heat up the solution;

e. add dilute nitric acid in the solution;

Explanation / Answer

Answer is a. add excess silver ions in the solution;

1.The (low) solubility of AgCl is reduced still further by the excess of Ag+ which is added, pushing the equilibrium to the right.

2.We can further decrease the solubility by decreasing the temperature of the solution by using an ice bath.

Related Questions

Navigate

• Browse (All)
• Browse T
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.