Bio Lab Report

Name: MUHAMAD HANIF BIN KAMAIL Class: M09T Title: ESTIMATING GLUCOSE CONCENTRATION IN SOLUTION Date: 15/10/2009 INTRODUCTION: Glucose (C6H12O6) is a monosaccharose reducing sugar. In this reaction, the glucose readily donates the electrons which be accept by the permanganate causing it to change chroma. The purple pink outcome of kB permanganate (MnO4-) is reduced to a colourizeless event of manganese ions (Mn2+). pale in solution Purple pink in solution MnO4- + 8H+ + 5e- Mn2+ + 4H2O As a result of this reaction the glucose is oxidised. The condemnation interpreted for the loss of colour from a standardised solution of permanganate is presently related to the immersion of glucose present in the solution. RESEARCH dubiety: What is the relationship surrounded by glucose closeness and the rate of reaction of the drop-off of kilobyte permanganate? system: The higher the concentration of glucose, the shorter magazine taken for the reduction of jet permanganate, hence resulting in shorter season taken for the pink colour of potassium permanganate to decolourise. This is because the concentration of glucose molecules in glucose solution is high consequently more electron are donated to the permanganate within a constant period.

VARIABLES: Units| Range| Independent Variables| The concentration of glucose solution.| %| 0% - 30%| helpless Variables| Rate of reaction of the reduction of potassium permanganate.| s-1| 0.0057s-1 - 0.0442-1| Table of variables mode FOR CONTROLLING VARIABLES: Controlled Variables| How to handle| Units| manage able effect(s) on result| hatful of the i! ndicator (potassium permanganate).| The leger of potassium permanganate is measured 2cm3 using syringe constantly.| cm3| If the amount of potassium permanganate is excessive, the time taken for the reduction to have intercourse may be altered and inaccurate.| Volume of glucose solution| The volume of glucose solution is unplowed constant...If you want to get a integral essay, order it on our website: BestEssayCheap.com

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