Transcription of Solutions - NCERT
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Solutions - NCERT
After studying this Unit, you will beable to describe the formation of differenttypes of Solutions ; express concentration of solutionin different units; state and explain Henry s law andRaoult s law; distinguish between ideal andnon-ideal Solutions ; explain deviations of real solutionsfrom Raoult s law; describe colligative properties ofsolutions and correlate these withmolar masses of the solutes; explain abnormal colligativeproperties exhibited by somesolutes in normal life we rarely come across pure of these are mixtures containing two or more puresubstances. Their utility or importance in life dependson their composition. For example, the properties ofbrass (mixture of copper and zinc ) are quite differentfrom those of German silver (mixture of copper, zincand nickel) or bronze (mixture of copper and tin);1 part per million (ppm) of fluoride ions in waterprevents tooth decay, while ppm causes the toothto become mottled and high concentrations of fluorideions can be poisonous (for example, sodium fluoride isused in rat poison); intravenous injections are alwaysdissolved in water containing
brass (mixture of copper and zinc) are quite different from those of German silver (mixture of copper, zinc ... of solutions, say vapour pressure with the concentration of the ... While sodium chloride and sugar dissolve readily in water, naphthalene and anthracene do not. On the other hand, naphthalene and anthracene dissolve readily in
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