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A 400 ml sample of 1M NaOH is left in a ...

A 400 ml sample of 1M NaOH is left in a hot plate ovemight, the following morning solution is 1.6M. Then volume of water evaporated is:

A

150ml

B

250ml

C

200ml

D

100ml

Text Solution

Verified by Experts

`M_(1)V_(1)=M_(2)V_(2)`
`1Mxx400=1.6xxV_(2)`
`v_(2)=(400)/(1.6)=250mL`
`DeltaV=400-250=150ml`
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