Chemistry - The Mole Explained - What is Avogadro's Number?!

The video explains the concept of the mole in chemistry, which is the SI unit for the amount of a substance. One mole equals 6.02 * 10^23, known as Avogadro's number. The video uses everyday terms like dozen and gross to help understand this large number. It also provides visualizations to grasp the enormity of Avogadro's number, such as covering Texas with quarters. The mole is crucial in chemistry for quantifying atoms, ions, or molecules in a substance, highlighting the small size of atoms. The video concludes with a brief mention of the mass of a mole of water molecules.

What is the mole in chemistry?

• A unit for measuring temperature

• A unit for measuring time

• A unit for measuring the amount of a substance

• A unit for measuring distance

Avogadro's number is equivalent to which of the following?

• 6.02 * 10^21

• 6.02 * 10^22

• 6.02 * 10^20

• 6.02 * 10^23

How high would a stack of quarters be if you had Avogadro's number of them?

• 100 miles

• 400 miles

• 200 miles

• 300 miles

If you lived to be 70 years old, how many seconds would that be approximately?

• 1.5 billion seconds

• 2.2 billion seconds

• 4.2 billion seconds

• 3.5 billion seconds

What does one mole of water molecules weigh approximately?

• 72 grams

• 54 grams

• 18 grams

• 36 grams