Number of Atoms and Gram Formula Mass

What is the relative atomic mass of sodium?

• 11
• 23
• 46
• 64

What is the relative molecular mass of fluorine gas, F₂?

• 19
• 38
• 9
• 18

What is the relative formula mass of ammonium nitrate, NH4NO3 ?

[Relative atomic mass: N, 14; H, 1; O, 16]

• 76

• 79

• 80

• 90

What is the relative formula mass of NaOH?

• 20
• 39
• 40
• 45

What is the molar mass NaCl?

• 58 grams
• 22.95 grams
• 162 grams
• 6.02 x 10²³

What is the molar mass of Ca(NO₃)₂?

• 148.096 g

• 164.086 g

• 102.055 g

• 70.084 g

If the atomic mass is 55.85, what is the name of this element?

• Iron

• Fe

• Manganese

• Mn

Tags

NGSS.HS-PS1-1

The smallest particle of any type of matter is known by which of the following terms?

• Element
• Compound
• Atom
• Chemical

The unit for mass is

• atoms

• molecules

• liters

• grams

Tags

NGSS.HS-PS1-7

Determine the gram-formula mass of H₂O.

• 3 g/mol

• 18 g/mol

• 8 g/mol

• 1 g/mol

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5