Concept explainers
A sample of gas weighs
Interpretation:
The molecular weight of the given gas is to be calculated. Whether the given sample of gas is
Concept introduction:
The ideal gas equation is used to represent the relation between the volume, pressure, temperature and number of moles of an ideal gas. The ideal gas equation is given as,
Where,
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•
•
•
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Answer to Problem 6.56E
The molecular mass of gas is
Explanation of Solution
The pressure of the given gas is
The temperature of the given gas is
The temperature of the given gas in Kelvin is represented as,
It is given that a sample of the given gas has a mass of
The given volume of the given gas is
The molar mass of
The molar mass of
The molar mass of
The ideal gas equation is given as,
Where,
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•
•
•
•
Rearrange the above equation for the value of
Substitute the value of
Therefore, the number of moles of the given gas is
The relation between mass and number of moles of a substance is given as,
Where,
•
•
•
Substitute the value of mass and number of moles of the given gas in the equation (2).
The molar mass of given gas is
Therefore, the molecular mass of gas is
The molecular mass of gas is
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