# Ideal Gas & Boiling Point – Organic Chemistry Quiz

### Organic Chemistry Calculations, Ideal Gas & Boiling Point – Chemistry

The key terms of this chapter include Boiling Point, Temperature, Ideal Gas.

For many purposes we can treat butane (C4H10 ) as an ideal gas at temperatures above its boiling point of −1.°C.

Suppose the pressure on a 800.mL sample of butane gas at 44.0 °C is tripled.

A sample of an unknown compound is vaporized at 200.°C . The gas produced has a volume of 960.mL at a pressure of 1.00atm, and it weighs 0.841g.

Assuming the gas behaves as an ideal gas under these conditions, calculate the molar mass of the compound. Round your answer to 3 significant digits.

The molar mass of the unknown compound is 34.0 g/mol.

Combustion of hydrocarbons such as heptane (C7H16) produces carbon dioxide, a “greenhouse gas.” Greenhouse gases in the Earth’s atmosphere can trap the Sun’s heat, raising the average temperature of the Earth. For this reason there has been a great deal of international discussion about whether to regulate the production of carbon dioxide.

Calculate the mass of CO that is in the collection tube. Round your answer to 2 significant digits. You can make any normal and reasonable assumption about the reaction conditions and the nature of the gases. that is in the collection tube. Round your answer to 2 significant digits. You can make any normal and reasonable assumption about the reaction conditions and the nature of the gases.

0.085 g

#### Ideal Gas & Boiling Point – Organic Chemistry Quiz

Here is a graph of the probability of an atom moving with a particular speed, for a sample of xenon gas at −143.°C.

Use this graph to answer the following questions. Round each of your answers to the nearest m/s..

A gas made up of atoms escapes through a pinhole 1.81 times as fast as Xe gas. Write the chemical formula of the gas.

Ar

For many purposes we can treat butane (C4H10 ) as an ideal gas at temperatures above its boiling point of −1.°C

Suppose the pressure on a 800.mL sample of butane gas at 44.0 °C is tripled.

A sample of an unknown compound is vaporized at 200.°C . The gas produced has a volume of 960.mL at a pressure of 1.00atm, and it weighs 0.841g.

Assuming the gas behaves as an ideal gas under these conditions, calculate the molar mass of the compound. Round your answer to 3 significant digits.

The molar mass of the unknown compound is 34.0 g/mol.

#### Ideal Gas & Boiling Point – Organic Chemistry Quiz

Combustion of hydrocarbons such as heptane (C7H16) produces carbon dioxide, a “greenhouse gas.” Greenhouse gases in the Earth’s atmosphere can trap the Sun’s heat, raising the average temperature of the Earth. For this reason there has been a great deal of international discussion about whether to regulate the production of carbon dioxide.

Calculate the mass of CO that is in the collection tube. Round your answer to 2 significant digits. You can make any normal and reasonable assumption about the reaction conditions and the nature of the gases.

0.085 g

Here is a graph of the probability of an atom moving with a particular speed, for a sample of xenon gas at −143.°C.

Use this graph to answer the following questions. Round each of your answers to the nearest m/s..

A gas made up of atoms escapes through a pinhole 1.81 times as fast as Xe gas. Write the chemical formula of the gas.