Best Questions of Solution

1.    What is the molarity of HNO₃in concentrated nitric acid , a solution with a density of 1.42g /cm³ that contains 68.0% HNO₃ by mass?

2.    The antifreeze in most automobile radiators is a mixture of equal  volumes of ethylene glycol and water with minor amount of other additives that prevent corrosion . What is the molarity of ethylene glycol in a solution prepared from 2218 g of ethylene glycol and 1996 g of water

3.    At 25 ⁰C   ,25 g of glycine the simplest amino acid found in proteins, will dissolve in exactly 100 g of water .Calculate the mole fraction of glycine and water in solution.

4.    Calculate the mole fraction of solute and solvent in a 3.00 molal solution of sodium chloride .

5.    A sulphuric acid solution containing 2.001 g of sulphuric acid in 0.350 liter of solution at 20 ⁰C has density of 1.3294 g/ml . Calculate (a) the molarity , (b) the molality, (c) the percent by mass of Sulphuric acid and (d) the mole fraction of sulphuric acid .

6.    Assume the solution is the ideal and determine the vapour pressure of a solution of 92.1 g of glycerin in 184.4 g of ethanol at 40 ^oC . The vapour pressure of pure ethanol is 0.178 atm  at 40 ^oC. The glycerin is essentially non volatile at  this temperature

7.    Find the Freezing point  of a solution  of 92.1 g of iodine , in 800g of Chloroform, assuming that the iodine nonvolatile at that the solution is an ideal. Kf  of chloroform is 4.68 ^oC/mol/kg an freezing point is -63.5 ^oC

      

8.    Find the boiling point  of a solution  of 92.1 g of iodine , in 800g of Chloroform, assuming that the iodine nonvolatile at that the solution is an ideal. Kb  of chloroform is 3.63 ^oC/mol/kg an freezing point is 61.26 ^oC        

      

 Reference : Table 12.1 of General Chemistry
                                        By Robinson-Odom-Holtzclaw(10^th Edition)