A sample of nitrogen gas occupies a volume of 8.81 L at 56.0°C and 0.550atm.If it is desired to decrease the volume of the gas sample to 7.74 L, whileincreasing its pressure to 0.674 atm, the temperature of the gas sample at thenew volume and pressure must be ||°C. A helium-filled weather balloon has a volume of 867 L at 14.9°C and 756mmHg. It is released and rises to an altitude of 6.20 km, where the pressure is417 mmHg and the temperature is -21.1°C.The volume of the balloon at this altitude isL.

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A sample of nitrogen gas occupies a volume of 8.81 L at 56.0°C and 0.550 atm. If it is desired to decrease the volume of the gas sample to 7.74 L, while increasing its pressure to 0.674 atm, the temperature of the gas sample at the new volume and pressure must be ]°C.

A sample of nitrogen gas occupies a volume of 8.81 L at 56.0°C and 0.550 atm. If it is desired to decrease the volume of the gas sample to 7.74 L, while increasing its pressure to 0.674 atm, the temperature of the gas sample at the new volume and pressure must be ]°C.

Chemistry: An Atoms First Approach

2nd Edition

ISBN:9781305079243

Author:Steven S. Zumdahl, Susan A. Zumdahl

Publisher:Steven S. Zumdahl, Susan A. Zumdahl

Chapter8: Gases

Section: Chapter Questions

Problem 145CWP: A certain flexible weather balloon contains helium gas at a volume of 855 L. Initially, the balloon...

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Two identical He-filled balloons, each with a volume of 20 L, are allowed to rise into the atmosphere. One rises to an altitude of 3000 m while the other rises to 6000 m. a Assuming that the balloons are at the same temperature, which balloon has the greater volume? b What information would you need in order to calculate the volume of each of the balloons at their respective heights?
A certain flexible weather balloon contains helium gas at a volume of 855 L. Initially, the balloon is at sea level where the temperature is 25C and the barometric pressure is 730 torr. The balloon then rises to an altitude of 6000 ft, where the pressure is 605 torr and the temperature is 15C. What is the change in volume of the balloon as it ascends from sea level to 6000 ft?
A 275-mL sample of CO gas is collected over water at 31C and 755 mmHg. If the temperature of the gas collection apparatus rises to 39C, what is the new volume of the sample? Assume that the barometric pressure does not change.
Workers at a research station in the Antarctic collected a sample of air to test for airborne pollutants. They collected the sample in a 1.00-L container at 764 torr and 20 C. Calculate the pressure in the container when it was opened for analysis in a particulate-free clean room in a laboratory in South Carolina, at a temperature of 22 C.
A large balloon contains 65.0 L of helium gas at 25 C and a pressure of 745 mm Hg. The balloon ascends to 3000 m, at which the external pressure has decreased by 30.%. What would be the volume of the balloon, assuming it expands so that the internal and external pressures are equal? (Assume the temperature is still 25 C.)
54 One way to generate oxygen is to heat potassium chlorate, KClO3. (The other product is potassium chloride.) If 386 mL of oxygen at 41 C and 97.8 kPa is generated by this reaction, what is the minimum mass of KClO3used?
5-113 Ammonia and gaseous hydrogen chloride react to form ammonium chloride according to the following equation: If 4.21 L of NH3(g) at 27°C and 1.02 atm is combined with 5.35 L of HCI(g) at 26°C and 0.998 atm, what mass of NH4CI(s) will be generated?
According to your calculations, a reaction should yield 5.67 g of oxygen, O2. What do you expect the volume to be at 23C and 0.894 atm?
Ethanol, C2H5OH, is produced industrially from ethylene, C2H4, by the following sequence of reactions: 3C2H4+2H2SO4C2H5HSO4+( C 2 H 5)2SO4C2H5HSO4+( C 2 H 5)2SO4+3H2O3C2H5OH+2H2SO4 What volume of ethylene at STP is required to produce 1.000 metric ton (1000 kg) of ethanol if the overall yield of ethanol is 90.1%?
A mixture of chromium and zinc weighing 0.362 g was reacted with an excess of hydrochloric acid. After all the metals in the mixture reacted, 225 mL dry of hydrogen gas was collected at 27C and 750. torr. Determine the mass percent of Zn in the metal sample. [Zinc reacts with hydrochloric acid to produce zinc chloride and hydrogen gas; chromium reacts with hydrochloric acid to produce chromium(III) chloride and hydrogen gas.]
Consider these four gas samples, all at the same temperature. The larger boxes have twice the volume of the smaller boxes. Rank the gas samples with respect to: (a) pressure, (b) density, (c) average kinetic energy, and (d) average molecular speed. (Green spheres are He; violet spheres are Ne.)
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