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Investigating the Relationship between the Concentration of Acid and the Rate of Reaction Aim My aim is to investigate what variables have an effect on the rate of reaction between magnesium and hydrochloric acid. The specific variable which I will be investigating is the concentration of the acid. Background Information The reaction which occurs between magnesium and hydrochloric acid is as follows: Symbol equation: Mg(s) + 2HCl(aq) --> MgCl2(aq) + H2(g) Word equation: magnesium + hydrochloric acid --> magnesium chloride + hydrogen What is a rate of reaction? The rate of a reaction tells us how quickly a chemical reaction occurs. The definition of a rate is a quantity, amount, or degree of something measured per unit of time. Chemical reactions may vary tremendously in speed. Some reactions such as rust forming on iron may take several months while some may be so fast that they may be even be explosive such as hydrogen and oxygen reacting to form water....

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