Practice: Consider two containers of gases at the same temperature. One has helium at a pressure of 1.00 atm. The other contains carbon dioxide with the same density as the helium gas. What is the pressure of the carbon dioxide gas sample?

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Pressure Units | 6 mins | 0 completed | Learn |

The Ideal Gas Law | 19 mins | 0 completed | Learn Summary |

The Ideal Gas Law Derivations | 6 mins | 0 completed | Learn |

The Ideal Gas Law Applications | 7 mins | 0 completed | Learn |

Chemistry Gas Laws | 16 mins | 0 completed | Learn |

Chemistry Gas Laws: Combined Gas Law | 12 mins | 0 completed | Learn |

Mole Fraction | 6 mins | 0 completed | Learn |

Partial Pressure | 19 mins | 0 completed | Learn Summary |

The Ideal Gas Law: Molar Mass | 19 mins | 0 completed | Learn |

The Ideal Gas Law: Density | 16 mins | 0 completed | Learn Summary |

Gas Stoichiometry | 7 mins | 0 completed | Learn |

Standard Temperature and Pressure | 14 mins | 0 completed | Learn |

Effusion | 13 mins | 0 completed | Learn Summary |

Root Mean Square Speed | 9 mins | 0 completed | Learn Summary |

Kinetic Energy of Gases | 5 mins | 0 completed | Learn |

Maxwell-Boltzmann Distribution | 8 mins | 0 completed | Learn |

Velocity Distributions | 5 mins | 0 completed | Learn |

Kinetic Molecular Theory | 7 mins | 0 completed | Learn |

Van der Waals Equation | 9 mins | 0 completed | Learn |

Additional Practice |
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Manometer |

Collecting Gas Over Water |

Additional Guides |
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Boyle's Law |

Charles Law |

Ideal Gas Law |

Under certain conditions of pressure and temperature, the **Ideal Gas Law** can determine the **density **of a gas.

Example #1: An unknown gas sample has a density of 1.70 g/L. If the sample has a volume 120.0 mL, what is its mass in grams?

Example #2: A gaseous compound of nitrogen and hydrogen is found to have a density of 0.977 g/L at 0.69474 atm and 373.15 K. What is the molecular formula of the compound?

Practice: Consider two containers of gases at the same temperature. One has helium at a pressure of 1.00 atm. The other contains carbon dioxide with the same density as the helium gas. What is the pressure of the carbon dioxide gas sample?

Practice: Determine the molecular formula of a gaseous compound that is 49.48% carbon, 5.19% hydrogen, 28.85% nitrogen, and 16.48% oxygen. At 27°C, the density of the gas is 1.5535 g/L and it exerts a pressure of 0.092 atm.

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Concept #1: The Ideal Gas Law: Density

Example #1: The Ideal Gas Law: Density Example 1

Concept #2: The Ideal Gas Law: Density

Concept #3: The Ideal Gas Law: Density

Example #2: The Ideal Gas Law: Density Example 2

Practice #1: The Ideal Gas Law: Density Practice 1

Practice #2: The Ideal Gas Law: Density Practice 2

Under what conditions would the density of 1 mole of C6H6 (g) be smallest while the density of 1 mole of CO2 (g) would be the highest?
a) High pressure and high temperature
b) The density is independent of P and T
c) Low pressure and high temperature
d) High pressure and low temperature
e) Low pressure and low temperature
f) None since such a condition does not exist

A 250-mL glass bottle was filled with water at 20°C and capped tightly. It was then placed in a refrigerator where the average temperature was -5°C. The next morning the glass bottle was found to have a crack due to the expansion of the liquid. Assuming the glass bottle did not change size upon cooling, calculate the minimum amount of water initially in the bottle that produced the crack.Density of water at 20°C = 0.998 g/cm 3.Density of ice at -5°C = 0.916 g/cm 3.a) 230-mLb) 247-mLc) 249.5-mLd) 212-mLe) 273-mL

The density of the vapor of allicin, a component of garlic, is 1.14 g. L-1 at 125ºC and 175 torr. What is the molar mass of allicin?1. 21.6 g · mol -1 2. 50.8 g · mol -1 3. 273 g · mol -1 4. 869 g · mol -1 5. 162 g · mol -1

Which of the following gases has a density of 0.673 g/L at 1.57 atm and 978°C?a) none of the given answersb) N2c) CO2d) SO2e) He

A 1.0-L container of liquid nitrogen is kept in a closet measuring 1.0 m by 1.0 m by 2.0 m. Assuming that the container is completely full, that the temperature is 25.0 °C, and that the atmospheric pressure is 1.0 atm, calculate the percent (by volume) of air that is displaced if all of the liquid nitrogen evaporates. (Liquid nitrogen has a density of 0.807 g/mL.)

A sample of N2O gas has a density of 2.85 g/L at 298 K. What is the pressure of the gas (in mmHg)?

Twenty-five milliliters of liquid nitrogen (density = 0.807 g/mL) is poured into a cylindrical container with a radius of 10.0 cm and a length of 20.0 cm. The container initially contains only air at a pressure of 760.0 mmHg (atmospheric pressure) and a temperature of 298 K. If the liquid nitrogen completely vaporizes, what is the total force (in Ib) on the interior of the container at 298 K?

An 11.5-mL sample of liquid butane (density = 0.573 g/ mL) is evaporated in an otherwise empty container at a temperature of 28.5 °C. The pressure in the container following evaporation is 892 torr. What is the volume of the container?

A quantity of N2 occupies a volume of 1.0 L at 300 K and 1.0 atm. The gas expands to a volume of 3.0 L as the result of a change in both temperature and pressure. Find the density of the gas at these new conditions.

A gas mixture composed of helium and argon has a density of 0.670 g/L at a 755 mmHg and 298 K. What is the composition of the mixture by volume?

A quantity of CO gas occupies a volume of 0.48 L at 1.0 atm and 275 K. The pressure of the gas is lowered and its temperature is raised until its volume is 1.3 L. Find the density of the CO under the new conditions.

At what condition will the density of gaseous argon (Ar) be the lowest?
1. 200◦C, 2 atm
2. −100◦C, 2 atm
3. Temperature and pressure do not affect the densities of noble gases.
4. 473 K, 1 atm
5. 173 K, 1 atm

Calculate the density of CO2(g) at 100°C and 10.0 atm pressure.A) 1.44 g/L B) 134 g/L C) 44.0 g/L D) 53.6 g/L E) 14.4 g/L

A balloon is filled with SF6 gas at 22°C to a volume of 2.50 liters and has a pressure inside equal to 1.25atm. Molar mass of SF6 is 146.06 g/mol.a. What is the mass of SF6 in the balloon?b. Calculate the density of the SF6 in the balloon?c. How many molecules of SF6 are in the balloon?

The density of citronellal, a mosquito repellant, is 1.45 g · L−1 at 365°C and 50.0 kPa. What is the molar mass of citronellal?
1. 95.7 g·mol−1
2. 88.0 g·mol−1
3. 154 g·mol−1
4. 73.2 g·mol−1
5. 37.5 g·mol−1

What is the density in g/L of Freon-11 (CFCl 3) at 24°C and 1.00 atm?

A quantity of CO gas occupies a volume of 0.48L at 1.6atm and 282K . The pressure of the gas is lowered and its temperature is raised until its volume is 2.1L. Find the density of the CO under the new conditions?

What is the density of nitrogen gas at 0 °C and 2 atm?

A quantity of CO gas occupies a volume of 0.34 L at 1.9 atm and 309 K. The pressure of the gas is lowered and its temperature is raised until its volume is 2.0 L. Find the density of CO under the new conditions.

At what density (in g/L) will oxygen gas have the same temperature as neon gas having a density of 3.10 g/L, with all species being held at constant pressure.a) 4.92b) 1.96c) 1.40d) 2.22e) 3.90

A sample of N2O gas has a density of 3.10 g/L at 298 K. What must be the pressure of the gas (in mmHg)?

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