7. Gases

Gas Stoichiometry

객관식
Which of the following statements is correct regarding net diffusion?
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객관식
What is the volume, in liters, of 11.6 g of ethane gas (C_2H_6) at STP? Round your answer to 3 significant figures.
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객관식
During photosynthesis, which gas is released by plants into the atmosphere?
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객관식
For the complete combustion of 40.0 liters of hydrogen gas (H_2) at STP, what volume of oxygen gas (O_2) is required?
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객관식
A sample of gas has a volume of 32 L at 75°C. At what temperature (in °C) will the volume be equal to 16 L, assuming pressure and amount of gas remain constant?
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객관식
At STP, how many liters of O_2 are required to produce 2 liters of H_2O(g) according to the reaction: 2H_2(g) + O_2(g) → 2H_2O(g)?
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객관식
When 8 grams of H_2 gas reacts completely with excess O_2 at standard temperature and pressure (STP), what volume of water vapor (H_2O) is produced?
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객관식
Which of the following lists the approximate concentration (by volume) of CO_2, N_2, and O_2 in dry air?
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객관식
Which variables are directly related in Gay-Lussac's law for gases?
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객관식
How many grams of N_2 are required to produce 100.0 L of NH_3 at STP according to the reaction N_2 + 3H_2 → 2NH_3?
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객관식
When a balloon filled with air is placed into a freezer, which of the following best describes what will happen to the balloon?
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객관식
Which of the following properties of gases can be directly measured in a laboratory setting?
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객관식
Which generalization can be made about the relationship between the temperature and volume of a gas, assuming pressure and amount of gas are constant?
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객관식
The oxidation of phosphorus can be represented by the following equation:
P₄ (s) + 5 O₂ (g) → 2 P₂O₅ (g)
If 1.85 L of diphosphorus pentoxide form at a temperature of 50.0 ºC and 1.12 atm, what is the mass (in g) of phosphorus that reacted?
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객관식
Which of the following processes releases carbon dioxide into the atmosphere during gas evolution reactions?
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