Molar Mass & Molar conversions

Fluorine is diatomic. What is the molar mass of fluorine gas?

• 19.00 g/mol

• 38.00 g/mol

• 9 g/mol

• 18 g/mol

What are the units for molar mass?

• grams
• amu
• grams/mole
• liters

What is the mass of one mole of aluminum?

• 26.98 g

• 13 g

• 53.96 g

• 14 g

The molar mass of an element is equal to its...

• Atomic mass
• Atomic number
• Oxidation number
• Valence electrons

The mass of one mole of substance is called...

• molecular mass
• mole constant
• molar mass
• atomic weight

What is the molar mass of sodium?

• 11
• 23
• 45.98
• 3

What is the molar mass of NaOH?

• 39.997 g/mol
• 38.989 g/mol
• 23.998 g/mol
• 57.004 g/mol

What is the molar mass of PbSO₄

• 303.3 g/mol
• 294.7g/mol
• 163.8g/mol
• 372g/mol

Covalent compounds are called molecules.  Ionic compounds are called formula units.  How many moles of CaO contain 6.02x10²⁵ formula units? 

• 100
• 1
• 56
• 560

How many molecules are in 9.4 moles of AlCl₃?

• 5.66
• 5.66x10²⁴
• 0.705
• 1.25x10²³