A 0.500 g sample of phosphorous vapor exerts a pressure of 550. torr in a 73.1 mL container at 489 ∘ C . What is the molar mass?
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Ответ:
0.057
Sorry if it wrong D:
Ответ:
Option (a) is the correct answer.
Explanation:
According to ideal gas equation, PV = nRT.
where, P = pressure
V = volume
n = number of moles
R = gas constant
T = temperature
This means the following.
Pressure is directly proportional to number of moles and temperature.
Volume is directly proportional to number of moles and temperature also.
Pressure is inversely proportional to volume and vice versa.
Thus, we can conclude that the statement volume is directly proportional to the number of moles, would be the most useful for deriving the ideal gas law.