Molar Conversions

What is the mass of 2.50 mol of oxygen gas O₂?

• 40.0 g
• 80.0 g
• 16.0 g
• 32.0 g

Tags

NGSS.HS-PS1-7

If I have 6.02 x10²³ molecules of CO₂, what is the mass?

• 44.0 g
• 2.65 x10²³ g
• 1.37 x10²² g
• 96.0 g

How many moles of copper (II) chlorate contain 1.45x10²¹ formula units?

• 8.73x10⁴⁴
• 1.20x10²⁴
• 0.00241
• 1.45

How many grams are in 3.3 mol of Potassium Sulfide?

• 360 g
• 454 g
• 238 g
• 132 g

Tags

NGSS.HS-PS1-7

One mole of sulfur (S) is equal to home many atoms?

• 32 atoms

• 16 atoms

• 1.20 x 10²³ atoms

• 6.022 x 10²³ atoms

To convert from moles to particles, you should multiply by ....

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5.11 x 10²³ atoms of lithium (Li) is equal to how many moles?

• 1.18 moles

• 0.351 moles

• 1.34 moles

• 0.849 moles

0.75 mole of copper (Cu) is equal to how many atoms?

• 8.03 x 10²³ atoms

• 6.02 x 10²³ atoms

• 4.51 x 10²³ atoms

• 3.11 x 10²³ atoms

To convert from moles to grams, you should multiply by ....

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Tags

NGSS.HS-PS1-7

0.50 moles of carbon (C) is equal to how many grams?

• 6.0 grams

• 12.0 grams

• 8.0 grams

• 14.0 grams