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Chemistry - AQA GCSE

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Pregunta:

Required practical for analysis and purification of water?

Autor: Miqdaam Hamed Hassan



Respuesta:

1)For each sample of water you are given, test the pH using either a pH meter or universal indicator and an appropriate colour chart. Record your observations carefully. 2)For each sample of water, pour 50 cm3 into a clean pre-weighed evaporating basin. Heat gently over a Bunsen burner, tripod and gauze until no liquid remains. Allow to cool, then weigh the evaporating basin again and calculate the mass of solid that remains in the evaporating basin.


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