Microscale reactions of chlorine

Description

In this experiment chlorine gas is generated on a microscale from bleach solution. The gas is used directly to investigate any reaction with water or halide ions in solution.

Credits

:
This is an experiment from the Practical Chemistry project, developed by the Nuffield Foundation and the Royal Society of Chemistry.
microscale-reactions-of-c...



Apparatus Chemicals

Goggles

Each pair of students requires:

Student sheet with instructions and diagram of apparatus (see Learn Chemistry for access to the students sheet)

Clear plastic sheet – e.g. OHP film

Plastic Petri dish + lid (9 cm)

Plastic teat pipette (see Note 1)

Scissors

Spatula (optional)

Access to solutions contained in plastic pipettes:

Sodium chlorate(I) solution, 10–14% w/v chlorine (CORROSIVE) Also known as sodium hypochlorite (Note 2)

Dilute hydrochloric acid, 1 M

Sodium hydroxide solution, 1 M (CORROSIVE)

Potassium (or sodium) chloride solution, 0.2 M

Potassium (or sodium) bromide solution, 0.2 M

Potassium (or sodium) iodide solution, 0.2 M

Optional (see Teaching notes):

Silver nitrate solution, 0.1 M, a few drops

Zinc oxide powder (DANGEROUS FOR THE ENVIRONMENT), spatula tip

Zinc sulfide powder, spatula tip

Blue Litmus or Universal Indicator paper, about 1 cm

Refer to Health & Safety and Technical notes section below for additional information.

 







In this experiment chlorine gas is generated on a microscale from bleach solution. The gas is used directly to investigate any reaction with water or halide ions in solution.

ADDITIONAL INFORMATION

This is a resource from the Practical Chemistry project, developed by the Nuffield Foundation and the Royal Society of Chemistry. This collection of over 200 practical activities demonstrates a wide range of chemical concepts and processes. Each activity contains comprehensive information for teachers and technicians, including full technical notes and step-by-step procedures. Practical Chemistry activities accompany Practical Physics and Practical Biology .