8. Gases, Liquids and Solids

Standard Temperature and Pressure

8. Gases, Liquids and Solids

Standard Temperature and Pressure

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Standard Temperature and Pressure

Standard Temperature and Pressure Example 1

Standard Temperature and Pressure

Standard Temperature and Pressure Example 2

Practice this topic

Multiple Choice

A sample of dichloromethane gas (CH₂Cl₂) occupies 32.6 L at 310 K and 5.30 atm. Determine its volume at STP?

Which gas sample has the greatest volume at STP?

Nitrogen and hydrogen combine to form ammonia via the following reaction:

1 N₂ (s) + 3 H₂ (g) → 2 NH₃ (g)

What mass of nitrogen is required to completely react with 800.0 mL H₂at STP?

Using the answer from problem 8.61, how many grams of nitrogen are in Whitney's lungs at STP if air contains 78% nitrogen?

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Textbook Question

A gas has a volume of 2.84 L at 1.00 atm and 0 °C. At what temperature does it have a volume of 7.50 L at 520 mmHg?

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Textbook Question

How many molecules are in 1.0 L of O₂ at STP? How may grams of O₂?

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Textbook Question

What is the mass of CH₄ in a sample that occupies a volume of 16.5 L at STP?

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Textbook Question

A weather balloon is partially filled with helium to allow for expansion at high altitudes. At STP, a weather balloon is filled with enough helium to give a volume of 25.0 L. At an altitude of 30.0 km and ―35 ⁰C, it has expanded to 2460 L. The increase in volume causes it to burst and a small parachute returns the instruments to Earth. (8.5, 8.6) b. What is the final pressure, in millimeters of mercury, of the helium inside the balloon when it bursts?

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Textbook Question

Which sample contains more molecules: 2.0 L of Cl₂ at STP or 3.0 L of CH₄ at 300 K and 1150 mmHg? Which sample weighs more?

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