Unit 5.1 Quiz - The Mole

Avogadro's number is______?

• 6.02 x 10²³

• 6.02 x 10^-23

• 2.06 x 10²³

• 6.02 x 10⁴³

How many moles of silver are in 1.8 x 10²⁰ atoms of silver?

• 3.0 x 10^-4

• 3.3 x 10^-3

• 3.0 x 10⁴

• 1.1 x 10^-44

How many molecules are in 2.10 moles of CO₂?

• 2.53 x 10²⁴

• 3.79 x 10²⁴

• 3.49 x 10^-24

• 1.26 x 10²⁴

Avogadro's number of representative particles is equal to one_______?

• mole

• gram

• liter

• kilogram

This can be an atom, ion, or molecule depending on the way the substance commonly exists.

• Mass

• Volume

• Representative partcle

How many moles are in 8.30 X 10²³ molecules of H₂O?

• 1.38 X 10²³ moles H₂O

• 1.38 moles H₂O

• 2 moles H₂O

• 1 mole H₂O

How many moles there are in 5.68 x 10²⁴ formula units of AlCl₃?

• 3.42 x 10²⁴ moles

• 9.44 x 10²⁴ moles

• 9.44 moles

• 3.42 moles

How many particles would be in 8.4 moles of Octane (C₈H₁₈)?

• 5.77 x 10²³
• 5.04 x 10²⁴
• 5.77 x 10²⁶
• 5.04 x 10²³

How many molecules are there in 5.5 moles potassium chloride?

• 4.08 x 10^-24

• 3.31 x 10²⁴

• 33.11

• 0.98

How many moles of copper are 4.57 x 10¹⁵ atoms of copper?

• 7.59 x 10^-9 moles
• 2.75 x 10^-33 moles
• 7.59 x 10⁹ moles
• 2.75 x 10³³ moles