QUESTION 2 At 27 C and 1.00 atm, the density of COzla) is 1.79 gl. The rate of effusion of CO2(g) through an apparatus is 7.59 m/sec. What is the molecular mass (gimol) of an unknown gas ifit effuses at a rate of 6.92 mL/sec through the same apparatus under the same conditions? Hint Use law of effusion that relates rate of effusion to molar mass.

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Chapter1: Chemical Foundations
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QUESTION 2
At 27 °C and 1.00 atm, the density of CO2(g) is 1.79 gL. The rate of effusion of CO2(g) through an apparatus is 7.59 ml/sec. What is
the molecular mass (g/mol) of an unknown gas if it effuses at a rate of 6.92 mL/sec through the same apparatus under the same
conditions? Hint: Use law of effusion that relates rate of effusion to molar mass.
QUESTION 3
In the previous question, what is the density (g/L) of the unknown gas? Hint: Use the form of the ideal gas law that relates molar mass
to density
Transcribed Image Text:QUESTION 2 At 27 °C and 1.00 atm, the density of CO2(g) is 1.79 gL. The rate of effusion of CO2(g) through an apparatus is 7.59 ml/sec. What is the molecular mass (g/mol) of an unknown gas if it effuses at a rate of 6.92 mL/sec through the same apparatus under the same conditions? Hint: Use law of effusion that relates rate of effusion to molar mass. QUESTION 3 In the previous question, what is the density (g/L) of the unknown gas? Hint: Use the form of the ideal gas law that relates molar mass to density
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