Molecular elevation of the boiling point

Where M is the molecular weight of the solute, Dt is the elevation of boiling point in °C, c is the concentration of solute in grams for lOOOgm of solvent, and K is the Ebullioscopic Constant (molecular elevation of the boiling point) for the solvent. K is a fixed property (constant) for the particular solvent. This has been very useful for the determination of the molecular weights of organic substances in solution. 

TABLE 11.9 Molecular Elevation of the Boiling Point (Continued)... 

The constant, K, for the molecular elevation of the boiling-point of carbon disulphide is 23-7.1 The specific heat, C, of liquid carbon disulphide is given by2... 

The molecular elevation of the boiling-point is calculated in a similar manner, and has the value 5-2° C. 

Other properties of aqueous solutions investigated are density,3 refractive index,4 molecular elevation of the boiling-point,6 vapour-pressure,6 specific heat,7 and electric conductivity.8 References are also appended to work on the compressibility,9 the solubility in organic solvents10 and sulphurous acid,11 the molecular weight in liquid sulphur dioxide,11 the electric conductivity in acetone12 and dilute alcohol,13 the non-existence of polyiodides,14 isomorphism with potassium iodide,15 and the formation of a double salt with silver iodide.16... 

Hence for i mole dissolved mice the molecular elevation of the boiling point of water is 514 8° For 1 mole dissolved in 1 liter of water the rise of boiling point is o 5148° It should be pointed out that the expressions for molecular depression of freezmg point and molecular elevation of boiling point are never realised in practice,... 

Molecular Depression of the Freezing Point Molecular Elevation of the Boiling Point Nomenclature of Inorganic Chemistry Nomenclature of Organic Compounds Nomograph and Table for Doppler Linewidths Optical Properties of Metals... 

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