Avogadro's Number

What is Avogadro's Number? 

• 6.02 x 10²³

• - 6.02 10²³

• 6.02 x 10²²

• 6,020,000,000,000

Avogadro's number of representative particles is equal to one_____

• kilogram

• gram

• kelvin

• mole

A mole of Neon contains
6.02 x 10²³ _____

• atoms

• formula units

• ions

• molecules

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The number 6.02 x 10²³ is called...

• Mole's number

• Bohr's number

• Dalton's number

• Avogadro's number

How many atoms of iodine are in a mole of iodine?

• 53

• 63.55g

• 126.9

• 6.02 x 10²³

What are the units for Avogadro's number?

• meters

• particles

• grams

• liters

In chemistry, a "mole" is:

• The mass of an atom

• a large number used to count particles

• based on the volume of a substance

Which has more molecules?

• 1 mole H₂O

• 1 mole Al(OH)₃

• 1 mole NaCl

• They are all the same

Why is the mole used in chemistry?

• The mass of atoms is in AMUs which is too hard to convert to grams.

• A dozen is not a scientific amount.

• Chemists needed to make chemistry easier to understand.

• It makes counting large numbers of small particles easier.

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Which has the most particles?

• mole H₂

• mole Na¹⁺

• mole Al(OH)₃

• These are all the same