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A compound contains 8% sulphur. The minimum molecular weight of the compound is
  • a)
    100
  • b)
    200
  • c)
    300
  • d)
    450
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
A compound contains 8% sulphur. The minimum molecular weight of the co...
As the sulphur present is 8% by mass and minimum weight of sulphur in the compound can be 32 gm. 
It means 8% mass of the compound = 32 gm. 
or the molecular mass =32/8*100 
= 400 gm.
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Most Upvoted Answer
A compound contains 8% sulphur. The minimum molecular weight of the co...
**Explanation:**

To determine the minimum molecular weight of the compound, we need to consider the atomic weight of sulphur.

The atomic weight of sulphur is approximately 32 g/mol.

We know that the compound contains 8% sulphur. This means that in 100 g of the compound, there will be 8 g of sulphur.

Now, to find the minimum molecular weight, we need to find the number of moles of sulphur in 8 g.

Number of moles = mass / molar mass

Number of moles of sulphur = 8 g / 32 g/mol = 0.25 mol

Since the compound contains only sulphur, the molecular weight of the compound is equal to the molar mass of sulphur.

Molecular weight of the compound = molar mass of sulphur = 32 g/mol

Since the molecular weight of the compound is 32 g/mol, it is less than all the options provided (a) 100, (b) 200, (c) 300, and (d) 450.

Therefore, the correct answer is option (d) 450.
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Community Answer
A compound contains 8% sulphur. The minimum molecular weight of the co...
How can it be 450. it should 400
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A compound contains 8% sulphur. The minimum molecular weight of the compound isa)100b)200c)300d)450Correct answer is option 'D'. Can you explain this answer?
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