Simple Flame Tests Worksheet for Metal Ion Analysis

A really straightforward worksheet for learners to use when carrying out a flame test analysis to determine the identity of an unknown metal ion (X). The ions included are: copper, barium, sodium, lithium, potassium, calcium and strontium (as these have the prettiest and most characteristic colours!). These could be given in the form of chlorides or other salts. By burning a sample of each of the above in a Bunsen flame (Dipping first in hydrochloric acid - concentrated and dilute both work well), learners learn to recognise the characteristic colours of each metal ion. This allows them to identify the unknown (any of the above) by simply observing its flame colour. No procedure or health & safety included - just a sheet to record results and identity of the unknown.