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Chemistry & Chemical Reactivity
Chemistry & Chemical Reactivity
10th Edition
ISBN:9781337399074
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter10: Gases And Their Properties
Section10.2: Gas Laws: The Experimental Basis
Problem 10.2CYU: A large balloon contains 65.0 L of helium gas at 25 C and a pressure of 745 mm Hg. The balloon...
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1. A high-altitude balloon contains 30.0 L of helium gas at 1.00 kPa. When the balloon moves to an altitude where the pressure is 25.0 kPa, what will be its new volume? (Assume that the temperature remains constant.) 2. A gas sample at a certain pressure and absolute temperature occupies a volume of 0.5 L. If the temperature is doubled and the pressure is reduced to one-third of its original value, what is the final volume occupied by the gas? 3. Through the water displacement method, 400 cm? of oxygen was generated and collected. The barometric pressure was 725.6 mm Hg and the temperature was 25°C. What would be the volume of the gas if it were collected dry at STP?
Transcribed Image Text:1. A high-altitude balloon contains 30.0 L of helium gas at 1.00 kPa. When the balloon moves to an altitude where the pressure is 25.0 kPa, what will be its new volume? (Assume that the temperature remains constant.) 2. A gas sample at a certain pressure and absolute temperature occupies a volume of 0.5 L. If the temperature is doubled and the pressure is reduced to one-third of its original value, what is the final volume occupied by the gas? 3. Through the water displacement method, 400 cm? of oxygen was generated and collected. The barometric pressure was 725.6 mm Hg and the temperature was 25°C. What would be the volume of the gas if it were collected dry at STP?
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