Observation exercise on the compounds of the s-block elements

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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.

  1. 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.

  1. Use a fume cupboard for this test.  Add 2 cm3 dilute hydrochloric acid to the cooled residue.  Identify the gas evolved.

  1. Make a solution of X in 5 cm3 distilled water and divide the solution into two equal parts:

  1. To the first part, add 1 cm3 of silver nitrate solution followed by an equal volume of dilute nitric acid.

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  1. To the second part, add 1 cm3 of barium chloride solution followed by an equal volume of dilute hydrochloric acid.

  1. Heat solid about 0.5g of solid Y in a clean dry test tube and identify the gases evolved.  Continue heating until there is no further change and allow the residue to cool.

  1. Add 1 cm3 of dilute hydrochloric acid to the cooled residue.


  1. Make a solution of about 0.5g of solid Y in 5 cm3 of distilled water and divide the solution into two equal ...

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