Concept explainers
(a)
Interpretation:
The molar mass of the gas using the
Concept Introduction:
Ideal gas law: The molar mass of a gas can be derived from the ideal gas law,
Here,
The number of moles n, is replaced by the mass of the gas in grams and the equation becomes,
Here.
(b)
Interpretation:
The molar mass from the freezing point of the solution has to be calculated.
Concept Introduction:
Freezing point depression: The freezing point depression is proportional to the concentration of the solute particles and is given by the equation,
Here,
(c)
Interpretation:
The difference in values found in the molar mass of the gas calculated from the freezing point of the solution and from ideal
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Chemistry: Principles and Practice
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