Molecular and Formula Mass

NaCl

• 58.5
• 23
• 35.5
• 67.6

K₂S

• 110.3
• 110
• 78.2
• 110.2

Tags

NGSS.HS-PS1-2

Cs₂SO₄

• 361.9
• 361.8
• 313.9
• 180

Copper (II) sulfide

• 95.7
• 96
• 159.3
• 191.4

magnesium fluoride

• 62.3
• 43.3
• 73.9
• 92.9

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

copper (II) nitrate

• 187.6
• 125.6
• 188
• 173.5

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

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

Tags

NGSS.HS-PS1-7

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 fluorine gas?
(beware!)

• 18.998 g/mol
• 38 g/mol
• 9 g/mol
• 18 g/mol