Logged out
Access All our Essays in an Instant
Swap your work for FREE access, or pay £4.99 for instant access
Enthalpy Change
Member rating: No Rating | Words: 1500 | Submitted: Wed Feb 13 2008
Page Preview
On the left is an image preview of every page of this document, and below are the first 150 words with formatting removed:
Skill P - Planning * The aim of this practical experiment is to determine the enthalpy change for this reaction by an indirect method based on Hess's Law. Both Calcium Oxide and Calcium Carbonate react readily with 2 mol dm Hydrochloric Acid solutions. The temperature changes during these reactions can be measured and the enthalpy changes calculated. * Chemicals and apparatus: * 250 cm measuring cylinder * 2 mol dm Hydrochloric Acid * 250 cm beaker * 0 - 10 0° C thermometer (graduations to 1° C ) * 2.4 - 2.6 g of Calcium Carbonate * 1.3 - 1.5 g of Calcium Oxide * Procedure 1. Weigh out a weighing bottle containing between 2.4 and 2.6 g of Calcium Carbonate 2. Weigh out a weighing bottle containing between 1.3 - 1.5 g of Calcium Oxide 3. Using the measuring cylinder provided place 50 cm3 of 2 mol dm-3 hydrochloric...
To see the full version of this document, and 143,648 others
