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Investigate, analyse and evaluate the effect on the rate of reaction of varying the concentration of hydrochloric acid in the reaction with magnesium.
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Sam Daniels Chemistry Coursework AN INVESTIGATION INTO THE REACTION BETWEEN HYDROCHLORIC ACID AND MAGNESIUM * Aim My aim is to plan, investigate, analyse and evaluate the effect on the rate of reaction of varying the concentration of hydrochloric acid in the reaction with magnesium. The chemical equation of the reaction I am investigating is: Mg (s) + 2HCl (aq) --> MgCl2 (aq) + H2 (G) * Rate of Reaction Rate of Reaction = Gas Produced Time taken To measure the rate of reaction I can use three ways: Precipitation - this is when the reaction's product is a precipitate which clouds the solution. Change in mass - a reaction which produces a gas will lose mass and this can be shown by carrying out the reaction on a balance. Volume of gas given off - A gas cylinder gas be used to collect the gas given off. Rate of reaction depends on four separate things: Temperature, concentration (or pressure for gases), size of particles (or surface area for liquids)...
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