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Answer to Question #41455 in Physical Chemistry for Ankush Kumar

Question #41455
0.10 g glycine and 0.4 ml water taken in 5 ml conical vial. Warmed slightly to dissolve the glycine. 0.3 rnl acetic anhydride added and stirred for about 5 min. Mixture cooled in ice bath for 10 min. Precipitate collected by suction filtration and washed with a few ml water. Clystais spread over a piece olfiiter papel or watch glass and air dried for i0 min. Mass and melting point of product recorded. Glycine dissolved after about 20 sec when watmed in gl5'cineiwater mixture' White, needle-shaped crystals formed when reaction mixture cooled in ice. 0.14 g. of solid obtained after f,rltration and drying of product. mp of crystals recorded as 205-207 n Solid product possibly still slightly wet.
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