Tuesday, 16 August 2011

Rates of reaction

Summative Design Investigation
Hydrocholoric acid was added to the sodium thiosulphate solution, a pale yellow precipitate of sulphur formed. Students designed an investigation to determine the effect temperature has on the reaction rate of this chemical reaction. Students recorded the time taken for the precipitate to form , and the X to disappear on the paper.
Students determined the effect temperature has on the rate of reaction.

Students heated the conical flask in a water bath on a hot plate.
 Chemistry is fun!

How long will the X take to disappear?

Temperature must be kept constant.

Read thermometer at eye level.

An actively engaged Academy Chemistry class.

Using ice the decrease the temperature.

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