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An aqueous solution of glucose boils at ...

An aqueous solution of glucose boils at `100.01^(@)C`.The molal elevation constant for water is `0.5 kmol^(-1)kg`. The number of molecules of glucose in the solution containing `100g` of water is

Text Solution

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`:.DeltaT=(1000L_(b))/(mW)`
`0.01=(1000xx0.5xxw)/(180xx100)`
`:.w=0.36`
`:. 180` g glucose contains `=6.023xx10^(23)`molecules
`:.0.36g` glucose contains `=(6.023xx10^(23)xx0.36)/(180)`
`=1.2xx10^(21)` molecules
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