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Chapter 9: Q5 E (page 506)
A typical barometric pressure in Denver, Colorado, is 615mm Hg. What is this pressure in atmospheres and kilopascals?
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The pressure of a sample of gas is measured with an open-end manometer, partially shown to the right. The liquid in the manometer is mercury. Assuming atmospheric pressure is 29.92 in. Hg, determine the pressure of the gas in: (a) torr (b) Pa (c) bar.
Question: Using the postulates of the kinetic molecular theory, explain why a gas uniformly fills a container of any shape.
Sometimes leaving a bicycle in the sun on a hot day will cause a blowout. Why?
In an experiment in a general chemistry laboratory, a student collected a sample of gas over water. The volume of the gas was 265 mL at a pressure of 753 torrs and a temperature of 27 掳C. The mass of the gas was 0.472g. What was the molar mass of the gas?
As \(1\;{\rm{g}}\)of the radioactive element radium decays over \(1\;\) year, it produces \(1.16 \times {10^{18}}\) alpha particles (helium nuclei). Each alpha particle becomes an atom of helium gas. What is the pressure in pascal of the helium gas produced if it occupies a volume of \(125\;{\rm{mL}}\)at a temperature of \({25^\circ }{\rm{C}}\) ?
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