IntroductionPearson Specification Analytical chemistry involves the identification of chemical substances using a variety of methods. Althou...
Crystallisation can be used to separate a solid solute from its solvent. Re-crystallisation is used to purify samples obtained in the laboratory. But what is a crystal?
In this section we consider how much product is formed by a chemical reaction . Some reaction processes are not very efficien...
Students should: 1.10 describe these experimental techniques for the separation of mixtures: simple distillation fractional distillation filtrat...
Introduction Water has no obvious smell. Water has no taste and water is colourless. Water has a neutral pH value ( pH 7). Many other chemi...
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To test the effect of particle size on the rate of oxidation we prepared three samples of steel wool each with different levels of coarseness (s...
Introduction Hydrogen is a flammable gas. It burns in air to produce water. A convenient test for hydrogen is to put a lighted splint in the mouth of...
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