Mole Concept and Avogadro's Number

What is the mole used for in chemistry?

• Determining color

• Measuring temperature

• Counting atoms, ions, or molecules

• Calculating speed

What is Avogadro's number?

• 1,000,000

• 12

• 144

• 6.02 * 10^23

How many items are in a dozen?

• 144

• 10

• 12

• 13

If you have one mole of water, how many water molecules do you have?

• 6.02 * 10^23

• 1,000,000

• 144

• 12

What is the mass of 6.02 * 10^23 water molecules approximately?

• 18 grams

• 1 kilogram

• 100 grams

• 1 gram