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When an evacuated 63.8-mL glass bulb is filled with a gas
Chapter 6, Problem 36P(choose chapter or problem)
QUESTION: When an evacuated 63.8-mL glass bulb is filled with a gas at 22°C and 747 mmHg, the bulb gains 0.103 g in mass. Is the gas \(N_2\), Ne, or Ar?
Questions & Answers
QUESTION: When an evacuated 63.8-mL glass bulb is filled with a gas at 22°C and 747 mmHg, the bulb gains 0.103 g in mass. Is the gas \(N_2\), Ne, or Ar?
ANSWER:
Step 1 of 2
Here, we have to identify the gas.
According to the Avogadro’s law the density of a gas is directly proportional to its molar mass .
According to the Charles law the density of gas inversely proportional to the temperature.
Let’s write the formula for ideal gas density formula:
\(d=\frac{M P}{R T}\)
Rearrange the formula is as follows.
\(M=\frac{R T}{P} \times d\)
d = Ideal gas density in kg/L.
M= Molar mass of gas
P = Pressure of the gas
R = Gas constant
T = Absolute temperature in K.