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A cylinder contains 8 gms of He, 40 gms of Ne and 80 gms of Ar. (Molecular weights of the components are 4, 20 and 40 respectively)
How many moles of Ne are there in the cylinder?
  • a)
    1
  • b)
    2
  • c)
    4
  • d)
    6
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
A cylinder contains 8 gms of He, 40 gms of Ne and 80 gms of Ar. (Molec...
Calculation of moles of Ne in the cylinder:

Given:
- Mass of Ne = 40 g
- Molecular weight of Ne = 20

Formula to calculate moles:
- Moles = Mass / Molecular weight

Calculation:
- Moles of Ne = 40 g / 20 = 2 moles
Therefore, there are 2 moles of Ne in the cylinder. Hence, the correct answer is option 'B'.
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Community Answer
A cylinder contains 8 gms of He, 40 gms of Ne and 80 gms of Ar. (Molec...
Number of moles = mass / molecular weight.
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