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The measured density at NTP of He is 0.1...

The measured density at NTP of He is 0.1784 g/L. What is the mass of one mole of He?

Text Solution

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The correct Answer is:
4
One mole of He occupies 22.4 litre volume
`because ` 1 litre volume weight `= 0. 1784 g`
`therefore 22. 4 ` litre volume weight `= 0. 1784 xx 22.4 = 4 g mol^(-1)`
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