Multiple Step Mole Conversions

If you are going from grams of CaCl₂ to particles of CaC_l2, what is the number of steps you need to take?

Check all that apply: These are the steps needed to go from L of N₂ to L of NH₃ in the following reaction: N₂ + 3H₂ --> 2NH₃

• Go from grams N₂ to moles N₂

• Go from L N₂ to moles N₂

• Go from moles N₂ to L NH₃

• Go from moles N₂ to moles NH₃

• Go from moles NH₃ to L NH₃

Tags

NGSS.HS-PS1-7

To convert from substance A to substance B, you must always go through ___________ ___________

How many moles of sodium chloride are in a 321.8 g sample?

• 18810 moles

• 3.315 x 10²⁴ moles

• 5.507 moles

• 4.767 moles

Tags

NGSS.HS-PS1-7

What would be the mass of 9.76 x 10²² formula units of SrCl₂?

• .1622 g

• 25.7 g

• 20.0 g

• .3589 g

From the video, what does "excess air" mean

• That there isn't enough air, we need to worry about it.

• That there is more than enough air, we don't even have to consider it.

How many grams of N₂ is needed when 68.0 g of NH₃ is produced?

• 16.00 g

• 26.00 g

• 36.00 g

• 46.0 g

• 56.0 g

Tags

NGSS.HS-PS1-7

How many molecules of water are in a 821.3 g sample?

• 45.58 molecules

• 8.232 x 10²⁵ molecules

• 8.909 x 10²⁷ molecules

• 2.744 x 10²⁵ molecules

Shivani measures out 6.0 moles of epsom salt (MgSO₄) to put in her bath. How many grams of MgSO₄ went in the bath?

• 3.6 x 10²⁴ g

• 720 g

• 0.050 g

• 340 g

Determine the mass of 4.20 moles of C₆H₁₂

• 353 g

• 0.0499 g

• 337 g

• 2.53 x 10²⁴ g