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Vapour density of a gas is 22. Its molecular mass will be:​
  • a)
    33g
  • b)
    44g
  • c)
    22g
  • d)
    11g
Correct answer is 'B'. Can you explain this answer?
Verified Answer
Vapour density of a gas is 22. Its molecular mass will be:​a)33g...
Molecular mass = 2 x vapour density= 2 x 22= 44Therefore, molecular mass of a gas will be 44.
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Vapour density of a gas is 22. Its molecular mass will be:​a)33g...
Calculating Molecular Mass from Vapour Density

Vapour density is the ratio of the molecular mass of a gas to its density. It is denoted by the symbol 'D'. We can calculate the molecular mass of a gas using the formula:

Molecular mass = 2 × Vapour density

Here, the molecular mass is expressed in grams per mole (g/mol).

Given that the vapour density of a gas is 22, we can calculate its molecular mass as follows:

Molecular mass = 2 × Vapour density
= 2 × 22
= 44 g/mol

Therefore, the correct answer is option 'B', which states that the molecular mass of the gas is 44 g.
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Community Answer
Vapour density of a gas is 22. Its molecular mass will be:​a)33g...
By equation molecular mass =2 × vapour density so, molecular mass =2×22. so the answer is 44.
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Vapour density of a gas is 22. Its molecular mass will be:​a)33gb)44gc)22gd)11gCorrect answer is 'B'. Can you explain this answer?
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