Moles and Mole Conversions

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

• 53
• 63.55g
• 126.9
• 6.02 x 10²³

The number 6.02 x 10²³ is called...

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

Tags

NGSS.HS-PS1-7

What is the molar mass of NaCl?

• 58.5g/mol

• 28g/mol

• 12g/mol

• 6.02 x 10²³

What would be the mass of 1.5mol H₂O

• 20 g

• 27 g

• 32 g

• 40 g

Tags

NGSS.HS-PS1-7

What is the mass of 0.75 moles of (NH₄)₃PO₄?

• 101.75 g
• 121.75 g
• 111.75 g
• 131.75 g

Tags

NGSS.HS-PS1-7

How many octane molecules would be in 8.4 moles of octane (C₈H₁₈)?

• 5.77 x 10²³

• 5.05 x 10²⁴

• 5.77 x 10²⁶

• 5.04 x 10²³

Which has more molecules?

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

Tags

NGSS.HS-PS1-7

How many moles of carbon atoms are there in 5g of carbon?

• 60 mol
• 17 mol
• 0.42 mol
• 7 mol

How many NaCl compounds are there in 5.9 moles of NaCl?

• 3.5x10²⁴

• 9.79x10^-24

• 1.02x10²³

How many molecules are present in 25 g of NaBr?

• 102.96 molecules
• 0.24 molecules
• 1.45x10²³ molecules
• 2.34 x 10²⁰molecules