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Determination of the Heat of Formation of Calcium Carbonate
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| Submitted: Wed Apr 09 2008
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Determination of the Heat of Formation of Calcium Carbonate Report Type: Full Date: 20th November, 2007 Grade: Objective: To determine of the heat of formation of calcium carbonate. Principle: Heat of formation of a substance is the enthalpy change when the substance is formed the substance from its constituent elements. To be more specific, under standard conditions, the enthalpy change when one mole of the substance is formed from its elements is called the standard heat of formation. An enthalpy change under standard conditions means that the reactants and products in the reaction are in standard states. The standard states are defined as the most stable form of substance at 1 atmosphere and 298 K (or 25 oC). These conditions enable comparisons to be made between sets of data. In this experiment, it is aimed to find out the heat of formation of calcium carbonate (CaCO3(s)). The equation for the formation of CaCO3(s) from its elements under standard conditions is: Ca(s)...
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