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Determination of the molecular mass of a liquid

Product No: P3010501

Principle

The molar mass of a liquid is to be determined by evaporating a liquid at constant temperature and pressure, and measuring the volume of vapour formed using a calibrated gas syring.

Tasks

Determine the molar masses of diethyl ether and methanol.
Discuss the results in terms of the real and ideal behaviour of vapours.

What you can learn about

Ideal and ordinary gases
Equations of state for ideal gases
Gas volumetry
Determination of molar masses according to the vapour density method (Victor Meyer)

Materiallist (Excerpt)	Product	Amount
Set of Precision Balance Sartorius CPA 623S and measure software, 230 V	49224-88	1
Set gas laws with glass jacket, 230 V	43003-88	1
Weather monitor, 6 lines LCD	87997-10	1
Power regulator	32288-93	1
Water, distilled 5 l	31246-81	1
Methanol 500 ml	30142-50	1
Diethyl ether 250 ml	30007-25	1
Boiling beads, 200 g	36937-20	1
Lab thermometer,-10..+150C	38058-00	2
Cannula 0.6x60 mm, Luer, 20 pcs	02599-04	1
Syringe 1ml, Luer, 10 pcs	02593-03	1
Laboratory Experiments Physics, Chemistry, Biology andApplied Sciences, CD-ROM, incl. operating manuals	16502-42	1