How do catalysts affect the rate of a reaction?
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How do catalysts affect the rate of a reaction? Aim: To find out how copper sulphate affects the rate of a reaction between Zinc and Sulphuric acid. Apparatus: Zinc powder Sulphuric acid Copper Sulphate Clamp stand Bung Bowl of water Stopwatch Spatula 1 Boiling tube (30ml) 2 Test tubes (50ml) Beaker Measuring cylinder Delivery tube Method: Results Without Catalyst With Catalyst 3:40 0:11 4:32 0:18 4:39 0:21 4:50 0:32 5:30 0:40 6:05 1:11 6:15 1:21 6:22 1:22 6:29 1:28 6:39 1:56 6:50 2:03 7:00 2:10 7:15 2:12 7:23 2:19 7:33 2:20 7:42 2:21 7:50 2:30 7:58 2:32 8:14 2:50 8:23 2:51 8:32 2:52 8:40 3:00 9:00 3:08 9:19 3:19 9:30 3:28 9:38 3:37 9:45 3:46 9:52 3:58 10:00 4:07 4:18 4:27 4:39 4:50 5:03 5:12 5:22 5:31 5:42 5:48 5:59 6:09 6:20 6:32 6:41 6:51 7:00 7:10 7:29 7:40 7:51 8:02 8:15 8:20 8:32 8:40 9:00 9:10 9:38 9:52 9:58 The Experiment with the Catalyst has produced twice as much Hydrogen that was produced in the experiment without the Catalyst. Safety To keep safe while carrying out this experiment. Follow these simple rules: * Wear safety goggles throughout every experiment you carry out. * If the sulphuric acid makes contact with your eyes immediately wash your eyes with warm water. May lead to permanent blindness. * If sulphuric acid makes contact with skin then wash immediately. It may burn or irritate. * Do not swallow the zinc powder. If you do, tell your teacher immediately. *...

