All Reactions and synthesis articles – Page 9
-
ExperimentThe properties of a copper envelope
Copper foil is folded into the shape of an envelope before being heated in a Bunsen burner. On cooling, the foil can be opened and it can be seen that where there was no contact with oxygen the copper remained unreacted.
-
Experiment
A solid-solid reaction between lead nitrate and potassium iodide
Prove that two solids can react together by using white lead nitrate and white potassium iodide to make yellow lead iodide.
-
Resource
Making biodiesel
The Learning about materials resources collection presents educational resources about materials in the form of teacher’s notes and photocopiable worksheets. This resource contains instructions for practical work on making a biodiesel, as well as worksheets covering alkenes, infrared spectroscopy, mass spectrometry, calculations on biodiesel yields, ester/biodiesel production and thermochemistry.
-
Resource
Which Compound? Which Route?
This exercise leads students through the decision-making process when choosing which new drug substance to make and the best synthetic route.
-
Experiment
A simple oscillating reaction
Witness a clear oscillating reaction as bromate ions oxidise malonic acid to carbon dioxide which is catalysed by manganese(II) ions and changes the reaction mixture from red-brown to colourless.
-
Resource
Chemistry Vignettes: Transition Metal Chemistry
A series of short screencast videos to introduce transition metal chemistry.
-
Resource
Chemistry Vignettes: Synthetic Mechanisms Advanced
A series of short screencast videos on advanced synthetic mechanisms.
-
Resource
Chemistry Vignettes: Mechanism Theory
A series of short screencast videos to introduce mechanism theory.
-
Resource
Chemistry Vignettes: Acid and Bases
A series of short screencast videos to introduce acids and bases
-
Resource
Chemistry Vignettes: Mechanisms of Esters/Amides
A series of short screencast videos to introduce synthetic mechanisms
-
Experiment
Diffusion in liquids
Demonstrate the diffusion that takes place in liquids using colourless crystals of lead nitrate and potassium iodide at opposite sides of a petri dish of deionised water.
-
Experiment
Preparing an insoluble salt in a precipitation reaction
Produce an insoluble salt precipitate by reacting two soluble metal salts together in this class experiment. Includes kit list and safety instructions.
-
Experiment
Displacement series for non-metals
Potassium sulfide, chloride, bromide and iodide are tested with oxygen and chlorine to establish which non-metallic elements are displaced.
-
Experiment
How much air is used up during rusting?
This experiment illustrates how much of the air is used in the rusting process. It is the oxygen component of air which reacts in the rusting process. This experiment allows calculation of the percentage of oxygen in the air.
-
Experiment
Dehydration of ethanol to form ethene
Dehydrate ethanol vapour over a heated catalyst to produce ethene gas which you can then test for properties of an unsaturated hydrocarbon.
-
Experiment
Microscale preparation of ethyl benzoate
In this experiment you will be preparing the ester ethyl benzoate by warming ethanol and benzoic acid in a plastic pipette in a water bath.
-
Experiment
The reaction between carbon dioxide and water
Observe the formation of a weak acid from the reaction between carbon dioxide and water in this class practical. Includes kit list and safety instructions.
-
Experiment
Properties of alkali metal compounds
This experiment shows the differences in the properties of various alkali metals. Solutions are prepared from these alkali metals with the pH and temperature changes recorded. Students also get to test their obervational skills by completing flame tests from these solutions.
-
Resource
Bubble volcanoes
In this experiment, students describe what is observed when ethanoic acid and sodium hydrogen carbonate are mixed, using key terms such as reaction, fizzing or effervesce and gas.
-
Resource
Magic writing with sodium nitrate solution
In this experiment, students write a hidden message using invisible ink and watch what happens when a glowing splint touches their message.
