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In D-glucose find molality of Glucose if mass % is 10.8% and weight of solution is 250g.(a) 0.6 m(b) 0.06 m(c) 6 m(d) 2.5 m |
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Answer» Correct option is (a) 0.6 m Weight of solution = 250 g Mass% = 10.8% Mass of glucose/Mass of solution x 100 = 10.8 Mass of glucose = 10.8/100 x 250 = 27 g Molality = Mass of glucose/Molar mass of glucose x 1000/wt. of solution = 27/180 x 1000/250 = 0.6 m |
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