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4.28g of NaOH is dissolved in water and ...

4.28g of NaOH is dissolved in water and the solution is made to 250 cc. what will be the molarity of the solution ?

A

0.615 mol `L^(-1)`

B

0.428 mol `L^(-1)`

C

0.99 mol `L^(-1)`

D

0.301 mol `L^(-1)`

Text Solution

Verified by Experts

No. moles of `NaOH =(4.28)/(40)=0.107` ltbr. Volume of solution `=250cm^3`
`M=n/(V("in L"))=(0.107)/(250)xx1000=0.428mol L^(-1)`
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