carb laboratory report Part II
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carb laboratory report Part II

Course Number: CHM 327, Fall 2008

College/University: Cal Poly Pomona

Word Count: 119

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Part II Data Table of Observation of 11 Types of Carbohyrates in 5 Carbohydrate Tests. Ribose Benedict's test + results: red ppt - results: solution remains blue Barfoed's test +++ results: red precipitate + results: some red ppt - results: solutions remain blue (time in seconds of time of precipitate occurrence) Galactaric acid test + results: presence of white crystal - results: absence of white crystal...

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II Part Data Table of Observation of 11 Types of Carbohyrates in 5 Carbohydrate Tests. Ribose Benedict's test + results: red ppt - results: solution remains blue Barfoed's test +++ results: red precipitate + results: some red ppt - results: solutions remain blue (time in seconds of time of precipitate occurrence) Galactaric acid test + results: presence of white crystal - results: absence of white crystal Seliwanoff's test + results: dark orange, cloudy solution - results: solution remains light orange (time in seconds of time of precipitate occurrence) Bial's orcinol test + results: blue/black colored products(+) - results: solutions remain light orange(-) (time in seconds of time of precipitate occurrence) + Arabinose + Fructose + Glucose + Galactose - Mannose + Lactose + Sucrose - Maltose + Starch Unknown Y-319C + +++ (150) +++ (81) +++ (52) +++ 70) +++ (66) +++ (52) + (620) - + (70) - + + - - + (187) +++ (22) - + (22) - - + (20) + (40) + (40) (6) (40) (13) (67) (7) 11 carbohyrates maltose, lactose, ribose, arabinose, fructose, glucose, galactose, mannose, maltose, lactose, sucrose, starch, unknown Y-319C (-), non-reducing sugar starch, sucrose (+), reducing sugar ribose , arabinose, fructose, glucose, galactose, mannose, maltose, lactose, unknown Y-319C (-), polysaccharides starch (+), dissacharides sucrose (+), disaccharides maltose, lactose (+++), monosaccharides ribose , arabinose, fructose, glucose, galactose, mannose, unknown Y-319C (+), galactose containing sugar galactose, lactose, unknown Y-319C (-), nongalactose containing sugar glucose (-), hexoses (+), pentoses arabinose, ribose glucose, fructose,galactos e, mannose, unknown Y-319C (+), fructose containing sugars fructose, unknown Y-319C (-), nonfructose containing sugars glucose

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Cal Poly Pomona - CHM - 327
1)Graph of experiment 1: time vs. abs 340nm1.41.21abs 340nm0.80.60.40.20 15 30 45 time (seconds) 60 753)Graph velocity vs assay [concentration] of ethanol0.250.20.15 velocity (mole/min.mL)0.10.050 0 1 2 3 4 5 6-0.0
Cal Poly Pomona - CHM - 327
2) Data table: Absorbance measured at 340nm Run # 1 2 3 4 5 6 7 8 9 10 Abs15sec 0.114 0.748 0.758 0.971 0.667 0.871 0.683 0.851 0.568 0.513 Abs30sec 0.348 1.039 0.957 1.232 0.913 1.145 0.989 1.065 0.812 0.710 Average run# 6-10 RU (min-1) 936 1164 796
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11.1 a) 1 3 2 11.2 c) A= 1 2 3A= -2 1 33 -2 14 A*B = C11.4A= 6 -1 8 a. A+B=C0 4 -5-3 9 2=B16:D18+F16:H18 =B16:D18+F16:H18 =B16:D18+F16:H18 =B16:D18+F16:H18 =B16:D18+F16:H18 =B16:D18+F16:H18 c. A-B=C =B16:D18-F16:H18 =B16:D18-F16:H18 =
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Homework 3 solutions begin on the next page:1234567
Cal Poly Pomona - PHY - 132
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