Moles and Mole Conversions

True or False. You must convert grams to moles to do stoichiometry.

• True

• False

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NGSS.HS-PS1-7

How many molecules are in 1 mole of CO₂?

• 4.6 molecules

• 4.6 grams

• 6.02 x 10 ²³ molecules

• 1.806x 10 ²⁴ atoms

Tags

NGSS.HS-PS1-7

Which of the following would have the highest number of moles?

• 4g CO₂

• 15g H₂O

• 22g NaCl

• 100g AgCl

2H₂   +   O₂    −−〉 2H₂O
8.3 moles H₂ −−〉 ? moles H₂O

• 4.15

• 8.3

• 16.6

• 74.04

Tags

NGSS.HS-PS1-7

Match the following...

• multiplying by 22.4L

• You convert moles to grams by...

• multiplying by the molar mass

• You convert moles to particles by...

• multiplying my avagadro's constant

• You convert moles to liters by...

• dividing by 22.4L

• You convert liters to moles by...

• dividing by the molar mass

• You convert grams to moles by...

Convert 50.0 grams of H₂O to moles of H₂O.

• 901 moles

• 18.02 moles

• 2.77 moles

Tags

NGSS.HS-PS1-7

How much would 3 moles of CO₂ equal?

• 132

• 33

• 404

88 grams of H₂O (18 g/mol) is how many moles?

• 4.88 moles

• .54 moles

• 6.67 moles

• 9.375 moles

• 10 moles

• 11.25 moles

• 12.5 moles

• 2 moles

• 3 moles

• 4 moles

• 6 moles

Tags

NGSS.HS-PS1-7