5. A solution contains 50g of iodine in 120g of alcohol. Calculate the concentration in
terms of mass percentage of solution
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Answer:
Mas of common salt (solute)=40 g
Mass of water (soluted) =320 g
mass of solution=320+40
=360 g
concentration of solution=
massofsolution
M
mass
ofsolute
×100
360
40
×100=11.11%
Hence, the concentration of the solution is 11.11%
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