Quiz The Mole

Which sample would would have the MOST atoms?

• 1 mole of Li

• 1 mole of Au

• 1 mole of Si

• None, all are equal

Calculate:

9.4 moles of B₂(Cr₂O₇)₃ = ____ grams B₂(Cr₂O₇)₃

• 6.41 x 10²²g

• 5.67x10²⁴ g

• 49.11 g

• 4,339.23 g

Tags

NGSS.HS-PS1-7

Calculate:

100 grams V₂(CO₃)₃ = ____ F.U. V₂(CO₃)₃

• 2.1 x 10²³ g

  V₂(CO₃)₃

• 3.7x10²³ g

  V₂(CO₃)₃

• 2.1 x 10²³ F.U.

  V₂(CO₃)₃

• 3.7x10²³ molecules V₂(CO₃)₃

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 particles or mass in a substance

• To measure the amount of energy in a substance

• To measure the amount of ions in a substance 

Tags

NGSS.HS-PS1-7

A mole of methane gas (CH₄) contains
6.02 x 10²³ _____.

• atoms
• formula units
• ions
• molecules

Select all that apply.

Which of the following is equivalent to a mole (1 mole)?

• 1 mole of Scandium

• 72.6 grams of Germanium

• 6.02x10²⁶

  formula units of LiBr

• 6.02x10²³ molecules of CO₂

Calculate:

2.85 x 10¹⁸ atoms Fe = ____ mol Fe

• 4.73 x 10^-6 moles Fe

• 172 moles Fe

• 4.73 x 10⁶ moles Fe

• 1.72 x 10^-6 moles Fe