This experiment begins with a flask filled mostly with air and few milliliters o

Question

This experiment begins with a flask filled mostly with air and few milliliters of liquid. At the point when the flask is removed from the hot water, what has happened to the air? What is in the flask?

a) the liquid to be studied is at the bottom of the flask. why is it important that thw whole flask be immersed in the boilling water bath?

b) what method is used to measure the volume of the flask?

c) two students measure molar masses of unknown samples. one student obtains a value of 0.0773g/mol, and the other obtains a value of 118.4 g/mol. are each of these answers possible? Explain briefly.

Explanation / Answer

A) it is done in order to make sure that the temperature is about 100 Celsius. B) the volume of the flask might be calculated with the weight of the flask without water and the fulfilled with water making use of the water density at 100 Celsius. C) 0.073g/mol is a value quite weird because it has a lower value than hydrogen molar mass.

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