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12) What is the mass of 3.5 moles of CO₂?​

User Tushar Niras
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1 Answer

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30 votes

Answer:

154 grams CO₂

Step-by-step explanation:

To find the mass of CO₂, you need to multiply the mole value by the molar mass of CO₂. The molar mass represents the mass (grams) of CO₂ per every one mole. It is important to arrange the ratio/conversion in a way that allows for the cancellation of units.

Atomic Mass (C): 12.011 g/mol

Atomic Mass (O): 15.999 g/mol

Molar Mass (CO₂): 12.011 g/mol + 2(15.999 g/mol) = 44.009 g/mol

3.5 moles CO₂ 44.009 g
------------------------- x -------------------- = 154 grams CO₂
1 mole

User Azeirah
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