How will the molar mass of the liquid be affectedif the vapor\'s volume is assum

Question

How will the molar mass of the liquid be affectedif the vapor's volume is assumed lo be 125-ml. (marked on the side of the flask) instead of the measured volume of the flask? Will it be high. low. or unaffected? If all the unknown does not vaporize in the Erlenmeyer flask, will the reported molar mass be too high, too low, or unaffected? Explain. Suppose the thermometer is miscalibrated and reads 5.0 degree C high over its entire temperature range. Does this affect the unknown's molar mass? Explain.

Explanation / Answer

Solution:

3. The molar mass of liquid will not be affected if the vapour volume is assumed to be 125 instead of measured volume of the flask.

5.If the thermometer is miscalibrated and reads 5.0 degree higher over its entire temperature range than the molar mass would be affected and would cause an increase in the molar mass of the liquid being measured.

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