Moles Practice

What is the molar mass of table salt (NaCl)?

• 116.886 g/mol

• 35.453 g/mol

• 22.990 g/mol

• 58.443 g/mol

What is the mass of 1.2 moles of IrI₃?

• 570 g
• 690 g
• 320 g
• 957 g

What is the molar mass of sodium?

• 11
• 22.990
• 45.98
• 3

Tags

NGSS.HS-PS1-1

What is the molar mass of AuCl₃?

• 96 g
• 130 g
• 232.5 g
• 303.3 g

A mole of carbon dioxide contains 6.02 x 10²³ _____.

• atoms
• formula units
• ions
• molecules

How many moles of sulfur atoms are there in 5.0 g of sulfur?

• 160 mol
• 8.3 x 10^-24 mol
• 0.16 mol
• 2.7 x 10^-22 mol

What are the units for molar mass?

• grams
• amu
• grams/mole
• liters

How many grams of NaCl (molar mass = 58.45g) are present in 11.00 moles? (moles to grams)

• 0.4500 g
• 156.6 g
• 331.0 g
• 642.9 g

Tags

NGSS.HS-PS1-7

What is the molar mass of (NH₄)₂CO₃ ?

• 144 g
• 138 g
• 96 g
• 78 g

Tags

NGSS.MS-PS1-1

What is the molar mass of calcium hydroxide, Ca(OH)₂?

• 74.1 g/mole

• 57.1 g/mole

• 58.1 g/mole

• 57.1 u