Mole Quiz Review

What is the mass of one mole of silver?

• 32.06 g

• 107.87 g

• 14.01 g

• 22.99 g

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

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48.86 g of cobalt is equal to how many moles of cobalt?

• 2879 moles

• 8.291 moles

• .8291 moles

• .829 moles

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NGSS.HS-PS1-7

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

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NGSS.HS-PS1-7

A sample of AlCl₃ contains a total of 4.515 x 10²⁷ atoms of chlorine. What must be the mass of this sample?

• 2.500 x 10⁵ g

• 1.000 x 10⁶ g

• 18.75 g

• 3.333 x 10⁵ g

How many moles are in 74 g of KCl

• 0.99 mole

• 0.014 mole

• 11.4 mole

• 0.14 mole

What is the molar mass of NaOH?

• 123 g/mol

• 41.1 g/mol

• 650 g/mol

• 250 g/mol

What is the molar mass of (NH₄)₂ SO₄?

• 180 g/mol

• 250 g/mol

• 132 g/mol

• 98 g/mol

Zinc is used as a coating on iron and steel to prevent corrosion. What is the mass, in grams, of 0.0650 moles of zinc?

• 0.425 g

• 4.25 G

• 5.99 g

• 11.5 g

How many grams are in 2.4 moles of sulfur?

• 45 g

• 77 g

• 98 g

• 110 g

Tags

NGSS.HS-PS1-7