Calculate the molarity of 20percent(w/v) aqeous solution of ethanol
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Molarity=no of moles of solute/volume of solution in dm3(L)
no of moles=mass/molar mass
=20/46
=0.43moles
Volume of solution is 100cm3
volume of solution in dm3=0.1dm3
M=0.43/0.1
=4.35
no of moles=mass/molar mass
=20/46
=0.43moles
Volume of solution is 100cm3
volume of solution in dm3=0.1dm3
M=0.43/0.1
=4.35
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