Understanding Oxygen Gas and Atom Counting

This video tutorial explains the diatomic nature of oxygen gas (O2) and its presence in compounds. It covers how to calculate the number of oxygen atoms in one mole of O2 using Avogadro's number. The video also discusses oxygen's role in different compounds, such as carbon monoxide and carbonate ions.

What does the term 'oxygen gas' typically refer to?

• A single oxygen atom

• O2, a diatomic molecule

• Ozone, O3

• Oxygen in water

How many oxygen atoms are present in one molecule of O2?

• Three

• Two

• Four

• One

What is Avogadro's number used for in the context of oxygen gas?

• To find the number of atoms in a mole of O2

• To measure the volume of gas

• To calculate the number of molecules in a mole

• To determine the weight of oxygen

How many oxygen atoms are there in one mole of O2?

• 2.408 x 10^24

• 3.011 x 10^23

• 1.204 x 10^24

• 6.022 x 10^23

In which compound is oxygen bonded to only one other element?

• Carbon monoxide

• Water

• Carbon dioxide

• Ozone

How many oxygen atoms are present in the carbonate ion?

• One

• Four

• Two

• Three