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Find the mass of glucose that should be ...

Find the mass of glucose that should be dissolved in 50g of water in order to produce the same lowering of vapour pressure as produce by dissolving 1 g of urea in the same quantity of water

A

1g

B

3g

C

6g

D

9g

Text Solution

Verified by Experts

The correct Answer is:
B
`(Delta p)_("glucose") = (Delta p)_("urea")`
`(X_(B))_("glucose") = (X_(B))_("urea")`
i.e., `" " (n_(A)n_(B))_("glucose") = (n_(A) n_(B))_("urea")`
`50 W_(B) xx 18018 = 50 xx 601 xx 18`
` W_(B) = 3g`
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