Calculate (a)molality (b)molarity and (c) mole fraction of KI, if the density of 20% (mass/ mass).

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Calculate (a)molality (b)molarity and (c) mole fraction of KI, if the density of 20% (mass/ mass) Aqueous KI is 1.202 gm/ml.

1.Calculate the mass percentage of benzene and carbon tetrachloride,
If 22gm of benzene is dissolved in 122gm of carbon tetrachloride.
2.Calculate the mole fraction of benzene in solution contain 30% by mass in carbon tetrachloride.
3.Calculate the molarity of each of the following solutions (a) 30 gm of Co(NO3)2.6H2O in 4.3 litre of solution. (b) 30 ml of 0.5M H2SO4 diluted to 500 ml.
4.Calculate the mass of urea required in making 2.5 kg of 0.25 molal aqueous solution.
5. Calculate (a)molality (b)molarity and (c) mole fraction of KI, if the density of 20% (mass/ mass) Aqueous KI is 1.202 gm/ml.