4% weight by weight solution of NaOH and water is prepared if the density of solution is 1.5g/cc. Then find out molarity?

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4% weight by weight solution of NaOH and water is prepared if the density of solution is 1.5g/cc. Then find out molarity?

chaudharybattery95 26th Sep, 2020

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Answer (1)

Yanamala Pavithra yadav 13th Oct, 2020

Hi, here I'm providing the answer for your question.

The formula to find molarity is, M= n/v

Where, M=molar concentration

n= moles of solute

v= litres of solution

4% (w/v) means 4gm of NaOH in 100ml

The molecular mass of NaOH is = 40

So molarity=4/40 * 1000/100 = 1M.

Therefore, the molarity is 1.0m

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