Which Gas Law Equation Do I Use?

Which equation would you use to calculate the answer to the following question (do NOT solve it)?: A container holds three gases: oxygen, carbon dioxide, and helium. The partial pressures of the three gases are 2.00 atm, 3.00 atm, and 4.00 atm, respectively. What is the total pressure inside the container?

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Which equation would you use to calculate the answer to the following question (do NOT solve it)?: 80.0 liters of oxygen is collected over water at 50.0 °C. The atmospheric pressure in the room is 96.00 kPa. What is the partial pressure of the oxygen? The partial pressure of water vapor at 50.0 °C is 92.5 mmHg.

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Which equation would you use to calculate the answer to the following question (do NOT solve it)?: The initial temperature of a 1.00 liter sample of argon is 24° C. The pressure is decreased from 720 mm Hg to 360 mm Hg and the volume increased to 2.14 liters. What was the change in temperature of the argon?

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Which equation would you use to calculate the answer to the following question (do NOT solve it)?: A 20.34 L container is filled with helium. The pressure inside the container is 150 atm and the temperature is 33°C. How many 5.0 L balloons can be filled when the temperature is 22° C and the atmospheric pressure is 755 mmHg?

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Which equation would you use to calculate the answer to the following question (do NOT solve it)?: A gas at a pressure of 0.5 atm has a volume of 25 liters and a temperature of 300 K. How many moles does the sample of gas contain?

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Which equation would you use to calculate the answer to the following question (do NOT solve it)?: A tank contains oxygen and helium at a total pressure of 7.00 atmospheres. The partial pressure of helium is 3.21 atmospheres. What is the partial pressure of oxygen in the tank?

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Which equation would you use to calculate the answer to the following question (do NOT solve it)?: A sample of an unknown gas is at a pressure of 1.2 atm, a volume of 31 liters, and a temperature of 87.0° C. How many moles of gas are in the sample?

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Which equation would you use to calculate the answer to the following question (do NOT solve it)?: A sample of argon has a volume of 5.0 L and the pressure is 0.92 atm. If the final temperature is 33° C, the final volume is 5.7 L, and the final pressure is 801 mm Hg, what was the initial temperature of the argon?

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Which equation would you use to calculate the answer to the following question (do NOT solve it)?: 322 L of hydrogen occupies a volume of 197 L at STP. If the initial temperature of the hydrogen was 37° C, what was its initial pressure?

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Which equation would you use to calculate the answer to the following question (do NOT solve it)?: If I have 17 moles of gas at a temperature of 67.0° C, and a volume of 88.89 liters, what is the pressure of the gas?

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