Mole Conversions #1 '24

How many formula units are in 2.5 moles of NaCl?

• 1.5 x10²⁴ formula units

• 1.5 formula units

• 4.2 formula units

• 4.2 x10^-24 molecules

How many molecules are there in 31.8 moles of water?

• 5.28 x 10^-23 molecules
• 1.91 x 10²⁵ molecules
• 5.28x 10-²⁵
• 1.91 x 10²²

How many moles are in 3.01 x 10²² atoms of magnesium?

• 0.050 moles
• 1.81 x 10⁴⁶ moles
• 5.00 x 10²¹ moles
• 5.00 moles

How many moles are in 4.5x10²⁴ Silver atoms?

• 0.747 particles

• 0.747 mol

• 2.71x10⁴⁷ mol

• 2.71x10⁴⁷ particles

The number 6.02 x 10²³ is called...

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