Moles AP

How many atoms of iodine are in a mole of iodine?

• 53
• 63.55g
• 126.9
• 6.02 x 10²³

Tags

NGSS.MS-PS1-1

The number 6.02 x 10²³ is called...

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

What is the molar mass of NaCl?

• 58.45g/mol
• 28g/mol
• 12g/mol
• 6.02 x 10²³

If I need 20.4 moles of sodium chloride, how much should I weigh out?

• 0.549 g
• 112 g
• 1192 g
• 5077 g

Tags

NGSS.HS-PS1-7

Which has more molecules?

• 1 mole H₂O
• 1 mole Al(OH)₃
• 1 mole NaCl
• There are all the same

Tags

NGSS.MS-PS1-1

The molar mass of an element is the mass of one ____ of the element.

• atom
• molecule
• mole
• gram

Tags

NGSS.MS-PS1-5

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

• 144g
• 138g
• 96g
• 74g

What is the molar mass of Mn₂Se₇?

• 134 g/mole
• 663 g/mole
• 189 g/mole
• 608 g/molw

What is the molar mass of (NH₄)₂SO₄?

• 66 g/mole
• 114 g/mole
• 100 g/mole
• 132 g/mole

How many atoms of carbon are in 6.00g of carbon?

• 1.20x10²⁴atoms C
• 6.02x10²³atoms C
• 3.01x10²³atoms C
• 1.50x10²³atoms C

Tags

NGSS.HS-PS1-7