Moles and Molecules

What is the molar mass of AuCl₃?

• 96 g
• 130 g
• 232.5 g
• 303.3 g

How many particles are in a mole?

• 602
• 602 million
• 602 moles
• 6.02 x 10²³

A mole of carbon dioxide contains 6.02 x 10²³ _____.

• atoms
• formula units
• ions
• molecules

Which of the following would have more mass?

• 1 mole of Li
• 1 mole of Au
• 1 mole of Si
• None, all are equal

Determine the amount of moles in 1.50 x 10²³ atoms of fluorine.

• 9.03 x 10⁴⁶ moles
• 0.249 moles
• 4.73 moles
• 0.0131 moles

Tags

NGSS.HS-PS1-7

Determine the number of
atoms in
2.50 moles of zinc.

• 1.51 x 10²⁴ atoms
• 4.15 x 10^-24 atoms
• 2.71 x 10^-22 atoms
• 163 atoms

Tags

NGSS.HS-PS1-7

How many molecules are there in 31.8 moles of water?

• 5.28 x 10^-23 molecules
• 1.91 x 10²⁵ molecules
• 5.28x 10-²⁵
• 1.91 x 10²²

Avogadro's number of representative particles is equal to one_____.

• kilogram
• gram
• kelvin
• mole

Tags

NGSS.HS-PS1-7

What is the molar mass of MgCl₂?

• 24.31 g/ml
• 95.21 g/mol
• 59.76 g/mol
• 70.90 g/mol

Convert three moles of beryllium oxide to molecules

• 25.01 molecules
• 1.81 x 10²⁴ molecules
• 0.12 molecules
• 1.80 x 10²⁴ molecules