Stoichiometry Chemistry: Mole to Mole and Mole to Mass

Avogadro's number of representative particles is equal to one_____

• kilogram

• gram

• kelvin

• mole

Find the mass of 3.8 mol of H₂O. Round to the nearest tenth.

• 57.9 g

• 54.8 g

• 68.4 g

• 62.3 g

Tags

NGSS.HS-PS1-7

What is the mole ratio in the following reaction:
2CO  +  O₂  → 2CO₂

• 2:1:2

• 1:1:1

• 1:2:1

• Have no clue what a mole ratios is!!

Tags

NGSS.HS-PS1-7

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

We use the periodic table to calculate...

• mass

• molar mass

• moles

Tags

NGSS.HS-PS1-7

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

What would be the mass of 1.5mol H₂O

• 20

• 27

• 32

• 40

Tags

NGSS.HS-PS1-7

If I need 20.4 moles of sodium chloride, how much should I weigh out?

• 0.549 g

• 112 g

• 1192 g

• 5077 g

What is the mole used for? 

• To measure the amount of grams in a substance

• To measure the amount of atoms or molecules in a substance

• To measure the amount of energy in a substance

• To measure the amount of bonding in a substance 

Tags

NGSS.HS-PS1-7

What is Avogadro's Number?

• 6.02 x 10²³

• - 6.02 10²³

• 6.02 x 10^-23

• 6,020,000,000,000