Question

how can we prove that chloride is a positive radical.



please friends help me in this question answer​

Answer 1

Answer:

Solutions with known and unknown chloride ion concentrations

Solutions with known chloride ion concentrations should be purchased or prepared. For a procedure to prepare chloride ion solutions with 5 ppm, 30 ppm, 300 ppm and 3000 ppm, consult Preparation of chloride ion sample solutions.

Solutions with unknown chloride ion concentrations can include a desalination treatment solution or any other solution requiring testing.

Test tubes, glass (e.g. 16 mm outer diameter x 125 mm length; holds about 20 mL)

Test tube rack

Dark material to use as a background (e.g. black Coroplast or black Bristol board)

Bright light (e.g. desk lamp)

Pasteur pipettes or eyedroppers, one per solution

Distilled or deionized water

Dilute nitric acid solution (HNO3, 5% [v/v]); for preparation instructions, see Preparation of solutions

Graduated cylinder (10 mL)

Volumetric flasks (100 mL)

Silver nitrate solution (2% [w/v]); for preparation instructions, see Preparation of solutions

Small beaker for transferring the silver nitrate solution

Brown bottle for storing the silver nitrate solution (e.g. 125 mL). Silver nitrate is light sensitive; if a brown bottle is not available, use a clear glass bottle and cover it with metal foil.

Glass storage bottle (e.g. 125 mL) for the nitric acid solution

Balance (to weigh to at least 0.01 g)

pH indicator paper

Sodium chloride (NaCl)

Filter paper (optional)

Funnel (optional)