Moles to Mass

In chemistry, a "mole" is:

• The mass of an atom
• a large number used to count particles
• based on the volume of a substance

What is the molar mass of NaOH?

• 368 g/mole 
• 40 g/mole
• 57 g/mole
• 23 g/mole

Where do you look to calculate the molar mass?

• avogadros number
• periodic table 

Tags

NGSS.HS-PS1-1

The number 6.02 x 10²³ is called...

• Obama's number
• Bohr's number
• Trump's number
• Avogadro's number

A mass of 6 g of Carbon contains

• 1 mole of C
• 2 moles of C
• 0.5 moles of C
• 72 moles of C

Tags

NGSS.HS-PS1-7

What is the molar mass of one molecule of Nitrogen N₂?

• 14.0 amu

• 14.0 g

• 28.0 g

• 28.0 amu

What is the mass of one mole of AuCl₃?

• 96g
• 130g
• 232.5g
• 303.5g

What is the molar mass of Mn₂Se₇?

• 553 g/mol

• 189 g/mol

• 663 g/mol

What is the mass of one mole of (NH₄)₂CO₃?

• 144g
• 138g
• 96g
• 74g

36.0 g of Be contains how many moles?

• 0.25 mol
• 4.0 mol
• 45 mol
• 320 mol