Describe the gas jar and explain what it is used for.
Important Questions on In the Lab
A sample of potassium salt was contaminated with potassium chloride. The tests were carried out on the contaminated sample.
TEST: An equal volume of barium nitrate solution is added to a solution of the solid. A precipitate forms. What colour will the precipitate be?
A sample of potassium salt was contaminated with potassium chloride. The tests were carried out on the contaminated sample.
TEST: An equal volume of barium nitrate solution is added to a solution of the solid. A precipitate forms. Name the precipitate and explain why it forms?
A sample of potassium salt was contaminated with potassium chloride. The tests were carried out on the contaminated sample.
TEST: An equal volume of barium nitrate solution is added to a solution of the solid. A precipitate forms which will disappear if dilute nitric acid is added. Why?
