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Grade 11Organic Chemistry

A sodium hydroxide solution containing 40% by weight of pure NaOH has a specific gravity of 1.5. What volume of this solution will be required in the preparation of 500ml of a 0.045M NaOH solution

Profile image of Raj
6 Years agoGrade 11
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1 Answer

Profile image of Arun
6 Years ago

Specific gravity=Density of substanceDensity of water
Since density of water is 1.We get specific gravity =Density of substance
Conder volume to b v.....Now Mass of naoh=1.5 v * (40/100)
Moles of naoh=Mass/40
Molaity=(moles/Volume)*10000
now


Mf Vf=Mi Vi
((1.5*40)/40*100)*1000*Vfi=0.45*500
Vi=15ml

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