Coursework.Info - Inspiration in an Instant

On the left is an image preview of every page of this document, and below are the first 150 words with formatting removed:

Determining the Enthalpy Change of the Decomposition of Calcium Carbonate. The objective of this experiment was to determine the enthalpy change for the decomposition of calcium carbonate with heat, using an indirect method based on Hess' law. The formulae for calcium carbonate, CaCO3, decomposing with heat: CaCO3 (s) heat CaO (s) + CO2 (g) Hess' Law states that ' the total enthalpy change for a chemical reaction is independent of the route by which the reaction takes place provided the initial and the final conditions are the same. The equation for the experiment not just for the decomposition: (H1 (H3 HCl (H2 HCl Both Calcium oxide and Calcium carbonate react readily with 2 mol dm-3 Hydrochloric acid. The temperature changes during the reaction will be measured and the enthalpy changes (H1 and (H2 calculated. From these enthalpy changes the value for (H3 can be calculated. Method 1. Weigh out a beaker containing between 2.4g and 2.6g of calcium carbonate. Record...

Get instant access

• Instant, unlimited access to our documents in full
• Swap your work for free access, or pay £4.99
• To see the full version of this document and 146,209 others

OR

Receive email updates for this category

• Simply tell us your email address and receive a weekly Study Help Email for FREE
• Receive 3 FREE essay views with each email
• Get all the latest essays from Coursework.Info & discussion from TheStudentRoom.co.uk