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... )
sodium thiosulphate
hydrochloric acid(dilute)
Make up about 200ml of a dilute sodium thiosulphate solution by adding 8g of sodium thiosulphate to 200ml of water (concentration = 4%). ...
Calculate the concentration!
How to calculate the new concentration:
40 ml ¡P 4 % = 60 ml ¡P x
=> x = (40 ml ¡P 4 %)/60 ml
=> x = 26. ...
How to calculate the new concentration:
20 ml ¡P 4 % = 60 ml ¡P x
=> x = (20 ml ¡P 4 %)/60 ml
=> x = 13. ...
Experiments 3: The Iodine Clock reaction: The effects of temperature and concentration on the rate of a reaction
Procedure
Material:
Test-tubes in rack
Thermometer
Evaporating basin
Burner
Beaker
Potassium iodate
Sulphuric acid (about 1 mol/1) Prepare one for your group!
Approximate Word count = 452
Approximate Pages = 1.8
(250 words per page double spaced)
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