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Calculate the number of moles of gas pre...

Calculate the number of moles of gas present in the container of volume 10 L at 300 K, if the manometer containing glycerine shows 5 m difference in level as shown diagram.
(Given : `d_("glycerin")=2.72g//mL," "d_("mercury")=13.6g//mL`)

A

0.94 mole

B

0.49 mole

C

0.64 mole

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
a
(a) `h_(g)d_(g)=h_(Hg)d_(Hg), 5xx2.72=13.6h_(Hg)`
`h_(Hg)=1m`
`P_("gas")=0.76+1=1.76m" of " Hg`
`=1760 mm " of " Hg`
`(1760)/(760)xx10=nxxRxx300`
`n=0.94 "mole"`
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