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Solve this problem Calculate the number of Carbon atoms in 39 g of Benzene.

Calculate the number of Carbon atoms in 39 g of Benzene.

  • Option 1)

    2 N

  • Option 2)

    5 N

  • Option 3)

    3 N

  • Option 4)

    6 N

 
Answers (1)
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As we learnt in 

Molar Mass -

The mass of one mole of a substance in grams is called its molar mass.

- wherein

 Molar mass of water = 18 g mol-1

 

 

 Molar mass of benzene = 78g

Number of moles in 39 g = 39/78 = 0.5 moles

Number of Carbon atoms = 6\times 5 = 3 moles

 


Option 1)

2 N

Incorrect

Option 2)

5 N

Incorrect

Option 3)

3 N

Correct

Option 4)

6 N

Incorrect

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