Particles and Moles

How many moles are in 4.5x10²⁴ Silver atoms?

• 0.747 particles

• 0.747 mol

• 2.71x10⁴⁷ mol

• 2.71x10⁴⁷ particles

How many moles are in 4.5x10²⁴ particles?

• 0.747 particles

• 0.747 mol

• 2.71x10⁴⁷ mol

• 2.71x10⁴⁷ particles

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

• 60 mol

• 17 mol

• 0.42 mol

• 7 mol

Tags

NGSS.HS-PS1-7

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

• 53

• 63.55g

• 126.9

• 6.02 x 10²³

What would be the mass of 1.5 mol H₂O

• 20

• 27

• 32

• 40

Which has more molecules?

• mole H₂O

• mole Al(OH)₃

• mole NaCl

• There are all the same

What is the molar mass of Mg₃N₂?

• 191.6 g/mol

• 76.64 g/mol

• 38.32 g/mol

• 100.95 g/mol

How many moles are there in 12.7g of CaF₂?

• 0.20 mol

• 1,000.76 mol

• 6.14 mol

• 0.16 mol

How many molecules are present in 25 g of NaBr?

• 102.96 molecules

• 0.24 molecules

• 1.45x10²³ molecules

• 2.34 x 10²⁰molecules

What is the best description of a substance?

• element

• compound

• mixture of elements and compounds

• mixture of compounds

Tags

NGSS.HS-PS1-3