Year 10 Set 1 Students!
Here are your homework questions. Please leave your first name and initial, and post DETAILED answers. I will not reveal them until our next lesson, so you can’t copy anyone elses!
A chemist investigates the reaction of marble chips with sulphuric acid. He measures the time taken for 100 cubic centimetres of sulphur dioxide gas to be formed.
1) How might he collect the gas formed?
At 20 degrees C, with a 1M solution of acid, and using 1g of marble chips, the reaction takes 33.7 seconds
For each of the following changes, describe the a) effect on time taken, b) effect on rate, and c) explain why this happens, using collision theory
2) With crushed marble instead of chips
3) With a more concentrated acid solution
4) At a higher temperature