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0.15g of substance displaced 58.9cm^(3) ...

`0.15g` of substance displaced `58.9cm^(3)` of air at `300K` and `746mm` pressure Calculate the molecular mass `("Aq Tension at" 300K = 26.7mm)` .

Text Solution

Verified by Experts

Mass of substance `= 0.15 g`
Volume of Air displaced `(V) = 58.9cm^(3)`
Temperature `(T) = 300K`
Pressure `(P) = 746 - 26.7 = 719.3 mm`
Molecular mass `= (719.3)/(760) xx (58.9)/(1000) = (0.15)/(M) xx 0821 xx 300`
`:.` Molecular mass `= 66.24 g//mol` .
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