calculate the molarity of NaOH in the solution prepared by dissolving 0.5 mole of NaOH in 1000 ml of water
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Explanation:
Molecular mass of NAOH = 23+16+1
= 40
Weight of solute= 20 gm(0.5 = 20 gm)
volume of solution = 1000ml
molarity. = weight of solute/ molecular mass/volume of solution ( in litre)
molarity= 20/40/1000/1000
= 20×1000/40×1000
= 1/2
=0.5 mol/litre
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