Calcium Nitrate and Avogadro's Number

The video tutorial explains how to determine the number of atoms in calcium nitrate, Ca(NO3)2. It breaks down the compound into its constituent atoms: calcium, nitrogen, and oxygen. The tutorial details how to count each type of atom, considering the chemical formula's notation. It further explains how to calculate the number of atoms in one mole of calcium nitrate using Avogadro's number. The video concludes with a summary of the findings.

What are the constituent atoms in calcium nitrate (Ca(NO3)2)?

• Calcium, Nitrogen, and Oxygen

• Calcium, Hydrogen, and Oxygen

• Calcium, Oxygen, and Sulfur

• Calcium, Nitrogen, and Hydrogen

How many calcium atoms are present in one formula unit of calcium nitrate?

• Two

• Three

• One

• Four

How many nitrogen atoms are present in one formula unit of calcium nitrate?

• Three

• Two

• Four

• One

What is the total number of oxygen atoms in one formula unit of calcium nitrate?

• Six

• Four

• Three

• Nine

How do you calculate the number of atoms in one mole of a substance?

• Divide the number of atoms by Avogadro's number

• Multiply the number of atoms by Avogadro's number

• Subtract Avogadro's number from the number of atoms

• Add Avogadro's number to the number of atoms

What is Avogadro's number?

• 6.02 x 10^25

• 6.02 x 10^22

• 6.02 x 10^24

• 6.02 x 10^23

If you have 6 oxygen atoms in calcium nitrate, how many oxygen atoms are there in one mole of it?

• 6.02 x 10^23

• 36.12 x 10^23

• 12.04 x 10^23

• 18.06 x 10^23