mole conversions

What is Avogadro's number?

• 6.022E25

• 6.222E25

• 6.022E23

• 25 Pizza Bites

How many moles are in 19.82 g Mg?

• 1.226mol Mg

• 1.000mol Mg

• 481.7mol Mg

• 0.8156mol Mg

How many grams of Hydrogen are there in 25 moles of water?

• 25

• 450

• 18

• 50

How many atoms are in 1.258 mol of calcium carbonate, CaCO3?

• 7.576E23 atoms CaCO3

• 7.577E23 atoms CaCO3

• 8.974E23 atoms CaCO3

• 6.576E23 atoms CaCO3

A mole of carbon dioxide contains 6.02 x 10²³ _____.

• atoms

• ions

• formula units

• molecules

How many moles of copper are 4.57 x 10¹³ atoms of copper?

• 7.59 x 10¹¹ moles

• 2.75 x 10³⁷ moles

• 7.59 x 10^-11 moles

• 2.75 x 10³³ moles

Determine the number of atoms in 2.50 moles of Zinc.

• 4.15 x 10^-24 atoms

• 1.51 x 10²⁴ atoms

• 163 atoms

• 2.71 x 10^-22 atoms

How many representative particles are in a mole?

• 602

• 602 million

• 602 moles

• 6.02 x 10²³

The number 6.02 x 10²³ is called...(definition for mole)

• Obama's number

• Bohr's number

• Trump's number

• Avogadro's number

1 mol = _____ g O₂

• 16
• 32
• 8
• 24