What Is Avogadro's Number

What is the value of Avogadro's number (Avogadro constant)?

• 6.02 x 10^23 mol^-1

• 1.0 x 10^23 mol^-1

• 12.0 x 10^23 mol^-1

• 6.02 x 10^22 mol^-1

What is the mass of Avogadro's number of chlorine atoms?

• 1.0 g

• 35.5 g

• 71.0 g

• 17.0 g

Are you enjoying the video lesson?

• Yes

• No

What does Avogadro's hypothesis state about gases?

• Equal volumes of gases at different temperatures and pressures contain different numbers of molecules.

• Equal volumes of gases at the same temperature and pressure contain the same number of molecules.

• The volume of a gas is directly proportional to its temperature, regardless of pressure.

• The pressure of a gas is inversely proportional to its volume, regardless of temperature.

What is the molar volume of any gas at room temperature and pressure?

• 12.0 dm^3 mol^-1

• 22.4 dm^3 mol^-1

• 24.0 dm^3 mol^-1

• 32.0 dm^3 mol^-1