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300 gm, 30%(w/w) NaOH solution is mixed ...

300 gm, `30%`(w/w) NaOH solution is mixed with 500 gm `40%`(w/w) NaOH solution. What is `%` (w/v) NaOH if density of final solution is 2 gm/mL?

A

`72.5`

B

65

C

`62.5`

D

None of these

Text Solution

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The correct Answer is:
A
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