Determination of the Molecular Mass of a Liquid Lab Activity (ScholAR)

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ScholAR Determination of the Molecular Mass of a Liquid Lab Activity

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Aligned with AP Chemistry Lab #3

The Ideal Gas Law can be used to determine the molecular mass of a liquid by converting the liquid to a gas and measuring its volume, temperature, and pressure. The gas law will then allow the calculation of the number of moles of the chemical. The molecular mass can be determined by condensing the gas back to the liquid form and measuring the mass. This experiment can be completed in 45 minutes and comes with enough materials for 15 setups.
Chemical Contents:
Iso-propyl Alcohol, 99% Solution
Methyl Alcohol, 99% Solution
Additional Materials Required:
Analytical Balance
400 mL Beakers
1 Hole Stoppers
Hot Plates
13 X 100 mm Test Tubes
Thermometers, ±1°C

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