Aim: To investigate the effect of temperature on reaction rate. Hypothesis: If the temperature in the reaction between calcium carbonate and hydrochloric acid is increased, then the reaction rate between the two solutions would also increase. Reaction: Figure 1: Equation of the reaction between calcium carbonate and hydrochloric acid 2HCl(l) + CaCO3 (s) → CaCl2(aq) + H2O(l) + CO2 (g) The reaction that is occurring above in Figure 1 is 2 moles of hydrochloric acid and one mole of calcium carbonate, reacting together to form aqueous calcium chlorine, water and carbon dioxide. When this reaction occurs, we should be observing an instant reaction with the mixture visibility fizzing and releasing carbon dioxide. This means that we are able to measure the rate of reaction by the change in mass of the mixture. Independent Variable: Temperature of the mixture(ºc) Dependent Variable: The change in mass (g) Controlled Variables: The concentration of hydrochloric acid and calcium carbonate The volume of hydrochloric acid and calcium car......

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