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Finding out How Much Acid There is in a Solution During the extraction of a metal from its ore, sulphur dioxide is often produced. It is converted into Sulphuric (VI) acid and sold as a useful by-product. I shall be carrying out a titration between sodium carbonate, a weak alkali, and sulphuric acid, a strong acid, to calculate the concentration of the sulphuric acid. The sodium carbonate sample I shall be using is a solid. Solids cannot be titrated successfully, so I will turn it into a solution by adding distilled water to it. The distilled water has no adverse effects on the sodium carbonate. Na2CO3(aq) + H2SO4(aq) Na2SO4(aq) + H2O(l) + CO2(g) Methyl orange is an acid-base indicator, which changes colour according to the hydrogen ion concentration of the solution to which it is added to. It 'indicates' the end point of the acid-base titration, and tests the acidity or alkalinity of the solution. I...

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