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Assessed practical- Determining the relative atomic mass of lithium o Hazards of chemicals used and obtained: Method 1- 2Li(s) + 2H2O(l) › 2LiOH(aq) + H2(g) Method 2- LiOH(aq) + HCl(aq) › LiCl(aq) + 2H2O(l) In method 1 hydrogen gas is produced. This is flammable and although not a lot will be produced it would be safe to keep the product away from open flames, sparks, etc. The product of the second method, lithium hydroxide, is alkaline and an irritant. When handling it care should be taken and if it is spilt all of it should be cleaned up immediately. Although not hazardous to us the lithium is very reactive and is used in small quantities. Also precaution must be taken in order to get accurate results, as with the distilled H2O that may become contaminated. In method 2 hydrochloric acid is used and although it only has a concentration of 0.1mol dm-3 care must be...

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