The Mole

A sample of silver contains 5.71 x 10²² atoms. How many moles of silver are present?

• 3.43 x 10⁴⁶ moles

• 0.0529 moles

• 0.0948 moles

• 10.5 moles

Which compound has the HIGHEST molar mass?

How many atoms are in 4.3g of H₂? Use correct significant figures!

Mathematical Equivalence

ON

Place the following values in the correct spot

a

b

c

d

1 mole

2.02 mole

22.4 L

45.2 L

Which BEST describes what the unit of mole can be used for?

• To measure the amount of grams in a substance

• To measure the amount of atoms or molecules in a substance

• To measure the amount of energy in a substance

• To measure the amount of bonding in a substance 

Tags

NGSS.HS-PS1-7

Which of the following is equivalent to a mole?

• mole of Scandium

• 72.61 grams of Germanium

• 6.02x10^26

  formula units of LiBr

• 6.02x10^23 molecules of CO2

Reorder the following in the order of steps on calculating molar mass

• Use the periodic table to determine the mass of each element

• Count the # of atoms of each element

• Multiply the number of atoms of each element by their mass

• add all of the different amounts

Calculate the moles in 12.7g of CaF₂

• 0.20 mol

• 1,000.76 mol

• 6.14 mol

• 0.16 mol

Calculate the mass, in grams, of 9.4 moles of B₂(Cr₂O₇)₃.

• 6.41 x 10²²g

• 5.67x10²⁴ g

• 49.11 g

• 4,339.23 g

Tags

NGSS.HS-PS1-7

A mole of Neon contains
6.02 x 10²³ _____

• atoms

• formula units

• ions

• molecules

Tags

NGSS.HS-PS1-7