Determine the total volume of gas must be collected
At 29.0°C the Helium is collected over water 1.00 atm total pressures. Determine the total volume of gas must be collected to get the .542 g of helium, at 25°C the vapor pressure of water is 23.8torr.
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When the O2(g) was dried water vapor removed, the gas has a volume of 1.93 L at 25°C and 785 torr. A 2.01 L sample of O2(g) was collected overwater at a total pressure of 785 torr and 25°C. Explain the vapor pressure of water at 25°C.
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Explain this result to a person who is familiar with hypothesis testing in general, such as with the t test for independent means, but knows nothing about chi-square tests.
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The 0.500liters of air a typical diver inhales per breath and carries a 20.-L breathing tank having air at a pressure of 300.bar. The pressure increases by 1 bar for every 10.08 m as she dives deeper.
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Impure acetanilide was dissolved then cooled on ice and crystallize and the Crystals were filtered with Hirsch funnel. During the filtration explain why should a small volume be used for rinsing the pure crystals and why does the rising solvent re
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