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Calculate a) molality b) molarity and c)...

Calculate a) molality b) molarity and c) mole fraction of KI if the density of `20%` (mass / mass) aqueous KI is `1.202" g mL"^(-1)`.
As density and % by mass is given, so find the mass of solute and solvent (as x % solution contains x g solute in (100 - x) g solvent).
Find volume of the solution, by using,,
Volume `=("Mass")/("Density")`
Recall the formulae of molality, molarity and mole fraction, to calculate them.
Molality `=("Mass of solute/ molar mass of solute")/("Mass of solventin kg")`

Text Solution

Verified by Experts

`1.5 " mol" kg^(-1) , 1.45 " mol L"^(-1) 0.0263`
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