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How do these common analytical techniques work, and what do they tell you? A) mp determination B) bp determination C)...

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Chemistry

Howdo these common analytical techniques work, and what do they tellyou?

A) mp determination
B) bp determination
C) Polarimetry
D) thin layer chromatography
E) gas chromatography

Answer & Explanation Solved by verified expert
3.8 Ratings (463 Votes)
A A melting point can be used to identify a substance and to get an indication of its purity The melting point or freezing point of a solid is the temperature at which the solid exists in equilibrium with its liquid state under an external pressure of one atmosphere Both the melting point range the interval between the beginning of liquefaction and complete liquefaction and the temperature of complete liquefaction are valuable indicators of the purity of the solid compound B Boiling point helps identify and characterise a compound A liquid boils when its vapour pressure is equal to the atmospheric pressure Vapour pressure is determined by the kinetic energy of a molecule Kinetic energy depends on the temperature mass and velocity of a molecule bp of organic ompound depends The relative strength of the four intermolecular forces is Ionic Hydrogen bonding dipole dipole Van der Waals dispersion forces Boiling points increase as the number of carbons is increased C Whereas regular unpolarised light includes waves that are inclined in any direction of space    See Answer
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