Logged out
Access All our Essays in an Instant
Swap your work for FREE access, or pay £4.99 for instant access
Analysis of - Ca(OH)2(aq) + 2HCl(aq) à CaCl2(aq) + 2H2O(l).
Member rating: No Rating | Words: | Submitted: Mon Sep 29 2003
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:
Analysis Test Number Rough 1 2 3 4 Initial HCl Volume (cm3) 0 0 18.5 0 18.4 Final HCl Volume (cm3) 18.4 18.5 37.0 18.4 36.8 Titre (cm3) 18.4 18.5 18.5 18.4 18.4 Results Table Average Titre = 18.45cm3 ˜ 18.5cm3 (3 significant figures) The given concentration of HCl is 0.3dm3. The equation for the reaction of limewater with hydrochloric acid is: Ca(OH)2(aq) + 2HCl(aq) --> CaCl2(aq) + 2H2O(l) Number of moles 1 2 Amount of Ca(OH)2 in this reaction is 1 mole, and for HCl is 2 moles. Therefore the concentration of HCl should be twice as much as the concentration of Ca(OH)2 so that there is less error, and so it is easier to find the number of moles on the solution due to lower errors. The concentration of Ca(OH)2 given is approximately 0.015 moldm-3. The given concentration of HCl is 0.3 moldm-3. The concentration of HCl must be diluted to a lower concentration. A concentration of 0.03moldm-3 would be ideal, because it would be easy to accomplish, and would be twice the concentration of...
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 147,309 others
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
