Introduction to the mole

The mole is a number we use to count really small things, it has a value equal to:

• 6.022 x $10^{23}$

• $1\ \times\ 10^{23}$

• $1\times10^{6.022}$

• $6.022\ \times23^{10}$

Three grand of atoms of iron has how many dozen atoms of iron?

• 150

• 250

• 350

• 500

How many reams are in 160 dozen?

• 3.1

• 3.25

• 3.84

• 4.31

How many oranges are in a dozen oranges?

• 12

• 13

• 24

• 144

How many atoms of gold are in 6 reams of atoms of gold?

• 3000

• 4000

• 5000

• 6000

How many scores of Hershey Kisses do you have if you have 352 Hershey Kisses?

• 17.6

• 18.5

• 19.9

• 214

Find the number of atoms in 2 moles of sodium.

• $1.2\ \times10^{24}$

• $2.4\times10^{23}$

• $6.022\ \times10^{23}$

• 12.044

How many moles of pens are  $1.2\ \times10^{24}$  ?

• 1

• 2

• 3

• 4

How many molecules of water make up 5 moles?

• $3.1\times10^{24}$

• 61

• 7.5

• $7.5\ \times10^{24}$

 How many moles are $2.65\ \times10^{25}$  atoms of carbon?

• 22

• 44

• 66

• 88