8.8.1: Practice Dalton's Law
- Page ID
- 236050
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Exercise \(\PageIndex{1}\)
You have a tank with a mixture of nitrogen and oxygen gas. The total pressure of the tank is 2550 psi. If the pressure of nitrogen is 1270 psi, what is the pressure of the oxygen?
- Answer
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1280 psi.
Exercise \(\PageIndex{1}\)
A sample of hydrogen gas is collected over water in a flask that has the same pressure as the lab room (0.9865 atm that day). The flask of water is 22.0 °C, and at that temperature, water vapor pressure is 19.8 mm Hg. What is the pressure of the hydrogen gas collected? If it occupies a volume of 445 mL, how many moles of hydrogen gas are there? (Assume the temperature of the hydrogen gas is also 22.0 °C)
- Answer
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Pressure = 0.9604 atm (or 729.9 mm Hg). There are 0.0177 moles.