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... Science Coursework Titrations Introduction: For my science coursework I have been asked to carry out an experiment to investigate the strengths of different sodium hydroxide solutions. By the end of my experiment I would like to find out which solution would be the best antacid to overcome indigestion. Indigestion is when acid from your stomach flows back up the oesophagus. I will be testing three sodium hydroxide (Na) solutions which have varying strengths, they are labelled A, B and C. To investigate the strength of each alkali I will use 4 different methods to measure the solutions. Phenolphthalein indicator is added to the antacid to turn it pink. Acid is added to the alkali solution to neutralise it. The amount of Acid which is added to each solution will determine the strength ness of it. Neutralisation is an irreversible chemical reaction; this is when an acid is neutralised by an alkali. This kind
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