Finding the RMM of a group 2 carbonate.

... Finding the RMM of a group 2 carbonate. Aim: - The aim of this practical was to find the RMM of a group 2 carbonate, and to accurately guess the element from group 2 used. Apparatus: - Safety glasses Burette Weighing bottle Burette funnel Spatula Burette stand 3 x 250cm3 beakers White tile Distilled water 3 x 250cm3 conical flasks Stirring rod Hydrochloric acid Volumetric flask Sodium Hydroxide Filter funnel Methyl red indicator Dropping pipette Safety Precautions: - Safety glasses were worn to prevent any substances entering the eye. Laboratory coats were also worn to prevent our clothes and skin, and hair was tied back so it did not interfere with our sight and experiment. Method: - The weighing bottle and lid were weighed, and recorded. The required amount in the range of 1.55-1.65g of the unknown group 2 carbonate was added to the weighing bottle, and the new weight recorded. 50.0cm3 of standard hydrochloric acid were pipetted into a 250.0cm3 volumetric flask, and a funnel added at the top of the flask.

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