I. Introduction:

The halide family is a term used to describe the elements in group 17 that include Fluorine, Chlorine, Bromine, and Iodine. The purpose of this lab is to learn how to distinguish each element in the family from the others by seeing how they react to the test reagents. That information will then be used to discover the identity of two unknown solutions.

II. Materials:

96-well test plate, plastic tooth picks, microtip pipettes, distilled water wash bottle, cotton swabs, .2 M calcium nitrate, .1 M silver nitrate, 4 M ammonia solution, .2 M sodium thiosulfate, Starch solution, and bleach.

III. Hypothesis:

If the fluorine ion is in the solution, then;

After adding AgNO3 and Na2S203 a large amount of dark brown precipitate will appear.

After adding starch and bleach large bubbles will appear in the clear solution.

If the chlorine ion is in the solution...