A course outline for grade 12 Chemistry including short exercises on chemical monitoring and management and information on the type of work and experiments done by professional chemists.
Provides information on the testing of acidic environments as well as practical chemistry experiments. Also analyzes the relationship between acidic soil levels and the colors of flower petals.
Details of an experiment to investigate the effects of the concentration of sodium thiosulphate on the rate of reaction between sodium thiosulphate and hydrochloric acid.
Details an experiment conducted to observe the various aqueous solutions of acids, bases and amphiprotic substances on a number of indicators, and to record the approximate pH.
Examines how temperature affects rate of reaction between sodium thiosulphate and hydrochloric acid. Predicts that when increasing the temperature of the sodium thiosulphate and hydrochloric acid, the rate of reaction will also increase. Details how results and evidence supports the prediction.
An official GCSE-style essay on the effect of changing concentrations of sulfuric acid on reaction rates, written in the correct GCSE chemistry format. Covers pre-experiment notes (aim, background information, fair test, and prediction) and the post-experiment notes (conclusion, graph analysis, and evalution). Does not include notes on the actual experiment, as these are specific to the individual experiments.
Provides the details of an experiment testing how change in energy release relates to the increase of the number of carbon atoms. Proposes the hypothesis that the longer the hydrocarbon chain, the longer the hydrocarbon will burn for. This is because the longer chains have more C atoms so they will take longer to burn as there are more bonds to break.
Details a chemistry lab, the purpose of which is to learn how to distinguish each element in the family from the others by seeing how they react to the test reagents. That information is then used to discover the identity of two unknown solutions.
Provides details of an experiment exploring the time delay of hydrochloric acid melting a magnesium ribbon. Investigates the effect of the concentration of hydrochloric acid reacting with a magnesium ribbon.
Study of rate of reaction between Sodium Thiosulfate and HCl, GCSE coursework. Identifies that the rate is slower when diluted because the water particles force the sodium thiosulfate particles to become more dispersed and so there are less successful collisions at their activation energy meaning it takes longer for the sulphur particles to be produced and thus it takes longer for the solution to turn cloudy.
Examines the rate of reaction between calcium carbonate and hydrochloric acid. Details an experiment investigating how the concentration affects the rate of reaction.
Details an experiment investigating how salt affects the poiling point of water. Describes the hypothesis, the materials necessary to complete the experiment and the procedure used to do the investigation.
Details and experiment on the separation of materials using dissolving, filtration and evaporation. Separates two mixed solids into their component parts and determines the percentage by mass of the two components involved.
