CONTENTS. 



CHAPTER I. 

 THE ABSORPTION COEFFICIENT OF SOLUTION FOR MONO-CHROMATIC RADIATION: 



PAGE. 



Introduction 6 



Statement of the problem 9 



Historical 10 



Apparatus 12 



Procedure 



Errors and corrections 17 



THE ABSORPTION COEFFICIENT OF THE SOLVENTS: 



Water 18 



Methyl alcohol 20 



Ethyl alcohol 21 



Propyl alcohol 21 



Iso-butyl alcohol 



Iso-amyl alcohol 21 



Discussion of results with the solvents 21 



THE ABSORPTION COEFFICIENT OF THE SOLUTIONS: 



Cobalt chloride in water 23 



Cobalt chloride in methyl alcohol 26 



Cobalt chloride in ethyl alcohol 29 



Cobalt chloride in propyl alcohol 31 



Cobalt chloride in iso-butyl alcohol 32 



Cobalt chloride in iso-amyl alcohol 33 



Discussion of results for cobalt chloride 35 



Cobalt chloride in methyl alcohol with water 36 



Cobalt chloride in ethyl alcohol with water 37 



Cobalt chloride in propyl alcohol with water 40 



Cobalt nitrate in water 40 



Cobalt sulphate in water 43 



Nickel chloride in water 47 



Hydrated nickel chloride in the alcohols 51 



Nickel nitrate in water 54 



Nickel sulphate in water 59 



Ferric ammonium sulphate in water 62 



Chromium chloride in water 64 



Chromium nitrate in water 66 



Chromium sulphate in water 67 



Potassium permanganate in water 67 



Conclusion 69 



CHAPTER II. 



THE CONDUCTIVITY AND VISCOSITY OF CERTAIN ORGANIC AND INORGANIC SALTS 

 IN FORMAMID AND IN MIXTURES OF FoRMAMID WITH ETHYL ALCOHOL: 



Introduction 71 



Experimental 72 



Preparation of the solvents 72 



Preparation of the salts 73 



Preparation of the solutions 73 



Apparatus 73 



Procedure 75 



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