Chemistry Coursework Nick Curum
Observation exercise on the compounds of the s-block elements
You are provided with 3 salts X, Y and Z which each contain a different s-block element. Carry out the reactions listed. Report all your observations and deductions in the table. You are not expected to write equations for the reactions.
- Heat about 0.5g of solid X in a clean dry test tube and test the gas evolved with a glowing splint. Continue heating strongly until there is no further change and allow the residue to cool.
- Use a fume cupboard for this test. Add 2 cm3 dilute hydrochloric acid to the cooled residue. Identify the gas evolved.
- Make a solution of X in 5 cm3 distilled water and divide the solution into two equal parts:
- To the first part, add 1 cm3 of silver nitrate solution followed by an equal volume of dilute nitric acid.