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Investigate the enthalpy values for the reaction between calcium carbonate and calcium oxide with Hydrogen Chloride.
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Investigate the enthalpy values for the reaction between calcium carbonate and calcium oxide with Hydrogen Chloride. Chemistry coursework Aim I will carry out this practical to investigate the enthalpy values for the reaction between calcium carbonate and calcium oxide with Hydrogen Chloride. I will collect the results and analyse them to reach a conclusion about the reactions between the reactants. Theory I will measure the temperature changes when calcium oxide and calcium carbonate react with hydrochloric acid solution. I can use a Hess' Law cycle to calculate the enthalpy changes using the equation. Enthalpy change = mass of liquid x temperature change x specific heat capacity This equation will help me to calculate the enthalpy changes, and which reaction was more exothermic, and why. I drew a Hess' Law cycle to illustrate the enthalpy values. CaCO³ (s) CaO (s) + CO² (g) Hı H² H³ CaCl² (aq) Fair test · We used scales correct to 2 decimal places. · We measured...
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