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Chemistry competitions can help students build their confidence and skills in chemistry and critical thinking. The Chemical Institute of Canada hopes that chemistry teachers across Canada will support their students in enrolling in the Canadian Chemistry Contest (CCC) and/or the Canadian Chemistry Olympiad contest (CCO). 

This last article of a three-part series describes how to use syringes, pressure gauges and Mason jars to do the gas laws: Boyle’s Law (pV), Gay-Lussac’s Law (pT) and Avogadro’s Experiment (pn). The huge advantage of using a Mason jar for the pressure vs amount relationship is that the stopper and ring combination produce a sealed container that can withstand a pressure inside of 2 atm without fear of the stopper popping or the glass breaking.

This second article in a three-part series on gas laws describes how to use a Mason jar to collect data and demonstrate the pressure-temperature relationship, Gay-Lussac’s law. Its huge advantage is that the gas temperature is measured, NOT the temperature of the water bath.

This three-part series will describe how to use syringes, pressure gauges and mason jars to study gas laws — Boyle’s law, Gay-Lussac’s law and Avogadro’s law. Most likely you did not learn the properties of gases using mason jars, syringes and pressure gauges.

The use of natural gas (methane) and propane as fuel gases exemplifies numerous areas of general science and general chemistry: intermolecular forces, states of matter and changes of state; heats of vaporization; liquid–vapour equilibrium and vapour pressure; stoichiometry and heats of combustion; gas laws; carbon dioxide emissions and climate change.

The small balloon in a syringe for demonstrating Boyle’s law can be substituted with an air-containing, cut and knotted finger of an exam glove.