Test Unit 5 Moles

The mass of 1 mole for an element or compound can be found on the periodic table. This mass is known as...

• molality

• molar mass

• formal mass

• molarity

If you have 1 mole of ethane molecules (C₂H₆), how many moles of C and H atoms do you have respectively?

• 1 mole of C

  and

  1 mole of H

• 2 moles of C

  and

  6 moles of H

• 6 moles of C

  and

  2 moles of H

• 6 moles of C

  and

  6 moles of H

Tags

NGSS.HS-PS1-7

Identify the sample with the most moles:

20.18 g of neon

or

39.95 g of argon

• 20.18 g of neon

• 39.95 g of argon

• They are both equal to 1 mole

Tags

NGSS.HS-PS1-7

Identify the number of moles in 6.02 x 10²³ molecules of H₂O.

• 1 mole

• 2 moles

• 6.02 moles

• 6.02 x 10²³ moles

Identify the type of Representative Particle.

One mole of sulfur hexafluoride (SF₆) contains 6.02 x 10²³ _____.

• atoms

• formula units

• ions

• molecules

Identify the conversion factor (ratio) needed to calculate the following:

Calculate the number of molecules in 4 moles of glucose, C₆H₁₂O₆.

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SELECT ALL CORRECT ANSWERS - The mole can be used to measure:

• The amount of volume for a gas at STP.

• The amount of molecules in a covalent substance

• The amount of mass for a compound.

• The amount of pressure an object applies.

Tags

NGSS.HS-PS1-7

Identify the conversion factor (ratio) needed to calculate the following:

Calculate the number of moles in 7.0x10⁴⁴ formula units of (NH₄)₃PO₄.

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Identify the abbreviation for mole.

• M

• m

• mol

• ml

Identify the unit of measurement for Avogadro's number.

• meters

• particles

• grams

• liters