Molar Mass, Mole & Conversion

What is the molar mass of NaOH?

• 368 g/mole 
• 40 g/mole
• 57 g/mole
• 23 g/mole

36.0 g of Be contains how many moles?

• 0.25 mol
• 4.0 mol
• 45 mol
• 320 mol

4.0 moles of H₂O would have what mass?

• 72 g
• 23 g
• 68 g
• 4.5 g

A mass of 6 g of Carbon contains

• 1 mole of C
• 2 moles of C
• 0.5 moles of C
• 72 moles of C

How many moles are in 2.3 grams of phosphorus?

• 0.07 moles
• 71.3 moles
• 13.5 moles
• 20 moles

The number 6.022 x 10²³ is called...

• A dozen

• Bohr's number

• Buckley's number

• Avogadro's number

Which has more molecules?

• 1 mole H₂O

• 1 mole CH₄

• 1 mole Cl₂

• They're are all the same.

One mole of sulfur (S) is equal to home many atoms?

• 32 atoms

• 16 atoms

• 1.20 x 10²³ atoms

• 6.022 x 10²³ atoms

Tags

NGSS.HS-PS1-7

To convert from moles to particles, you should multiply by ....

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To convert from particles to moles, you should multiply by ....

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