Moles Review

 A mole is equal to…

•  6.022 x 10²³ atoms

•   3.00 x 10⁸ atoms

•   6.626 x 10^-34 atoms

• 1.0 x 10^-14 atoms

 A mole is equal to…

•  12 grams of Mg

• 1.   12 grams of C

•   6 grams of C

• 1. 6 grams of Li

1.  Molar mass is the…

• 1.  Mass in grams of 1 mole of a substance

• 1.   Volume in Liters of 1 mole of a substance

  2.   

• 1. Mass in grams of an atom of a substance

  2.  

• 1.  Volume in Liters of an atom of a substance

Tags

NGSS.HS-PS1-7

1. Determine correct number of atoms for each element in Calcium Nitrate, Al(NO₃)₃.

• 1. Al - 3

  2. N - 3

  3. O - 3

• 1. Al - 1

  2. N - 3

  3. O - 3

  4.   

• 1. Al - 1

  2. N - 1

  3. O - 9

  4.  

• 1. Al - 1

  2. N -3

  3. O - 9

1. What is the Molar Mass of Sodium Nitrate, NaNO₃?

• 1. 53 g/mol

• 1. 159 g/mol

• 1. 85 g/mol

• 1. 113 g/mol

1. What is the Molar Mass of Ca₃P₂?

• 1. 71 g/mol

• 1. 182 g/mol

• 1. 142 g/mol

• 1. 151 g/mol

1. Which set-up would you use to correctly solve for the number of moles in 4.5 grams of Magnesium (Mg)?

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1. Calculate the number of moles in 8.3 grams of Nitrogen (N).

• 58.1 moles

• 0.59 moles

• 116.2 moles

• 1.60 moles

1. Which set-up would you use to correctly solve for the mass in grams of 56.2 moles of Oxygen (O)?

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1. Calculate the mass in grams of 1.2 moles of Potassium (K).

• 46.8 grams

• 0.03 grams

• 32.5 grams

• 22.8 grams