Molar Conversions (10.2)

The number 6.02 x 10²³ is called...

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

How do we get mass from moles?

• Multiply by Avogadro's number
• Multiply by molar mass
• Divide by Avogadro's number
• Divide by molar mass

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

One mole of potassium is equal to how many grams of potassium?

• 19
• 39
• 24
• 17

One mole of sulfur is equal to home many atoms?

• 32
• 16
• 1.2 x 10^23
• 6.02 x 10^23

Tags

NGSS.HS-PS1-7

0.50 moles of carbon is equal to how many grams?

• 6.0
• 12.0
• 8.0
• 14.0

0.75 mole of copper is equal to how many atoms?

• 8.03x10²³
• 6.02x10²³
• 4.51x10²³
• 3.11x10²³

5.11x10²³ atoms of lithium is equal to how many moles?

• 1.18
• 0.351
• 1.34
• 0.849

Tags

NGSS.HS-PS1-7

How many atoms would be contained in 454 grams of iron (Fe)?

• 6.02x10²³ atoms
• 8.14 atoms
• 4.90x10²⁴ atoms
• 55.85x10²³ atoms

Tags

NGSS.HS-PS1-7

Find the mass in grams of 2.25x10²⁴ atoms of calcium (Ca).

• 40.0 grams
• 255.1 grams
• 150 grams
• 9.02x10²⁴ grams