# To determine the heat of formation of calcium carbonate 2 essay Assuming a the solution in the plastic beaker has the same specific heat capacity as water, i. As far as you can, list out the major sources of inaccuracy in the experiment and suggest ways to improve them whenever possible. Determination of the Enthalpy Change of a Reaction Determine the enthalpy change of the thermal decomposition of calcium carbonate by an indirect method based on Hess' law. Write the equation for the formation of calcium carbonate under standard conditions.

Magnesium Hydroxide was mixed with water and the change in heat was measured using a thermometer. Moreover, the solution should have unit activity 1mol dm The experiment was repeated with 1. Essay on Chemical Reactions And The Chemical Reaction - Introduction: In this lab, I determined the amount of heat exchanged in four different chemical reactions only using two different compounds and water.

In a chemical reaction, bonds must either be made or broken, this involves an enthalpy change.

## Enthalpy change of formation of calcium carbonate

The experiment was repeated with 2. Calculate the average heat evolved by one mole of calcium carbonate. This path independence is true for all state functions 8. The standard enthalpy of neutralisation is the heat absorbed per mole when an acid and a base react to form water under standard conditions In other words, an energy change is path independent, only the initial and final states being of importance. Why is this principle useful? Should we measure the volume of acid with a measuring cylinder? State the law which you have used in order to answer Question 7 depends? Draw an energy-cycle linking Equations 1, 2 and 3 together, you must include reactions that had not been performed in the experiment.

Why is this principle useful?

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