A Game on Avogadro's Number

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

• 53

• 63.55g

• 126.9

• 6.02 x 10²³

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.

Which has the most particles?

• mole H₂

• mole Na¹⁺

• mole Al(OH)₃

• These are all the same

What are the units for Avogadro's number?

• meters

• particles

• grams

• liters

The molar mass of an element is the mass of one ____ of the element.

• atom

• molecule

• mole

• gram

Avogadro’s number is:

• 6.02 x 10²²

• 6

• 6.02 x 10²³

• 3.01 x 10²³

How many molecules are in 2.5 mol of NaCl?

• 51x10²³

• 46

• 4.15

• 51x10²⁴

How many atoms of carbon are in 6.00g of carbon?

• 20x10²⁴atoms C

• 6.02x10²³atoms C

• 3.01x10²³atoms C

• 1.50x10²³atoms C

To change mass to atoms, how many conversion factors would need to be used?

• 2

• 3

• 1

• 5

Tags

NGSS.HS-PS1-7

What is Avogadro's number used to represent?

• The number of atoms in a mole of a substance

• The number of molecules in a gram of a substance

• The number of electrons in an atom

• The number of protons in a nucleus