Sulfate Ion Testing Procedures

The video tutorial explains how to test for the presence of sulfate ions in a solution. It begins by describing the typical color of sulfate ion solutions and introduces barium nitrate as a testing agent. The tutorial then provides step-by-step instructions on preparing the solution, including adding dilute nitric acid and handling excess solution. Finally, it demonstrates the addition of barium nitrate, resulting in the immediate formation of a white precipitate, confirming the presence of sulfate ions.

What is the typical appearance of solutions containing sulfate ions?

• Green

• Blue

• Yellow

• Colorless

Which chemical is used to test for the presence of sulfate ions?

• Sodium chloride

• Barium nitrate

• Calcium carbonate

• Magnesium sulfate

What should you do if you have excess solution after adding dilute nitric acid?

• Add water

• Heat the solution

• Add more nitric acid

• Pour off the excess

What is the next step after preparing the solution with dilute nitric acid?

• Add sodium chloride

• Add barium nitrate

• Add more water

• Heat the solution

What indicates the presence of sulfate ions when barium nitrate is added?

• Bubbles form in the solution

• A white precipitate forms

• The solution becomes clear

• A blue color appears