Forming insoluble salts
The experiments in this section involve precipitation reactions to form insoluble salts.
While we are still at an early stage with this website it's probably more useful to look at the page with our complete list of experiments in alphabetical order. See the list on About this website.
We are starting with GCSE-level experiments.
Experiments
-
Investigating the solubilities of lead halides
Solutions of soluble halides are mixed with a solution of a lead salt. Students investigate the formation of insoluble lead halides, and effect of temperature.
-
Solubility patterns among anions of the Group 7 elements
The experiments explore patterns of solubility among the anions of Group 7 elements with lithium, calcium and silver cations.
-
Diffusion in liquids
Students place a crystal of lead nitrate and a crystal of potassium iodide into a petri dish of deionised water. These dissolve, diffuse and react to form yellow lead iodide.
-
Reactions of positive ions with sodium hydroxide (microscale version)
This experiment involves the reactions of various positive ions with sodium hydroxide on a microscale, involving no test-tubes.
-
Making a photographic print
In this experiment students make a photographic image of an object on photographic paper coated with silver chloride.
-
Silver and lead halides
A series of reactions showing the formation of silver and lead halides, and some of their properties.
