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INTRODUCTION Why should this coursework be entitled "The Crumbling Taj"? The Taj Mahal is a famous beautiful building found near Delhi in India. It is made of marble, which is a polymorphic form of calcium carbonate. Unfortunately it is slowly being damaged by acidic rain. This occurs in two forms: * Natural carbonic acid formed when carbon dioxide dissolves in water. * Acid rain made of a mixture of sulphurous acid, sulphuric acid and nitric acid. These acids are formed from pollution from the burning of fossil fuels and from the discharged exhaust from road transport. Although hydrochloric acid is not one of these mentioned, it is convenient to use in this experiment, as it is available in our laboratory. The active ion, H3O+ in all acids is present in hydrochloric acid just as much as it is present in all the other acids mentioned. AIM The aim of my investigation is...

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