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The boiling point of a solution containi...

The boiling point of a solution containing 2.62 g of a substance A in 100 g of water is higher by `0.0512^(@)C` than the boiling point of pure water. The molar mass of the substance ( `K_(b)=5.12Km^(-1)` ) is :

A

131

B

262

C

26.2

D

2620

Text Solution

Verified by Experts

The correct Answer is:
D
`M_(B)=(K_(b)xx1000 xx w_(B))/(w_(A)xx Delta T_(b))`
`=(5.12xx1000xx2.62)/(100 xx 0.0512)=2620`
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MODERN PUBLICATION-SOLUTIONS-Multiple Choice Questions (Level-I) (Basic conceptual Qs) (Colligative Properties)
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