Logged out
Access All our Essays in an Instant
Swap your work for FREE access, or pay £4.99 for instant access
Investigation to find out if changes in concentration of acid Effect the rate of chemical reactions.
Member rating:
(19 votes)
| Words:
| Submitted: Thu Jul 11 2002
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:
Investigation to find out if changes in concentration of acid Effect the rate of chemical reactions. Planning Introduction The rate of a reaction is defined as the speed at which the reaction takes place. Many things can affect the rate of reaction. In this coursework I am investigating what Effect the change in acid concentration will have on the rate of reaction. The reaction between sodium thiosulphate and dilute hydrochloric acid will be used. The concentration of the thiosulphate will be changed; I will do this by adding different amounts of water. The concentration of the acid (hydrochloric) will remain constant. Table of variables Variable Effect Reason Value Temperature A high temperature will speed up the rate of reaction. As the temperature is increased particles move quicker. Increasing the temperature increases the rate of reaction. 10 degrees raise in temperature doubles the rate of reaction. Catalysts Adding a catalyst increases the rate of reaction. It is not used up itself Catalysts speed up reactions by...
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 145,970 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
