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A balloon contains 10 g of H₂ (2.01588 amu) gas. How many moles of argon gas (39.9480 amu) must be added so that the balloon will have exactly the same aero buoyancy (i.e., so that its weight will be equal to that of an equal volume of the surrounding air)? Assume ideal gas behaviour; neglect the weight of the balloon itself and assume it to be impermeable and perfectly elastic. The average molecular weight of air is 29 g mol-¹.

A balloon contains 10 g of H₂ (2.01588 amu) gas. How many moles of argon gas (39.9480 amu) must be added so that the balloon will have exactly the same aero buoyancy (i.e., so that its weight will be equal to that of an equal volume of the surrounding air)? Assume ideal gas behaviour; neglect the weight of the balloon itself and assume it to be impermeable and perfectly elastic. The average molecular weight of air is 29 g mol-¹.

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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R = 0.08205 L atm mol-1 K-1

T(K) = T (°C) + 273.15

A balloon contains 10 g of H₂ (2.01588 amu) gas. How many moles of argon gas (39.9480 amu) must be added so that the balloon will have exactly the same aero buoyancy (i.e., so that its weight will be equal to that of an equal volume of the surrounding air)? Assume ideal gas behaviour; neglect the weight of the balloon itself and assume it to be impermeable and perfectly elastic. The average molecular weight of air is 29 g mol-¹.
Transcribed Image Text:A balloon contains 10 g of H₂ (2.01588 amu) gas. How many moles of argon gas (39.9480 amu) must be added so that the balloon will have exactly the same aero buoyancy (i.e., so that its weight will be equal to that of an equal volume of the surrounding air)? Assume ideal gas behaviour; neglect the weight of the balloon itself and assume it to be impermeable and perfectly elastic. The average molecular weight of air is 29 g mol-¹.
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