Sunday, December 8, 2013

Lab Report Estimating Glucose Concentration

Biology lab report ; topic : 3.2 ____________________________________________________________ ______________________ Title : Estimating Glucose niggardliness in Solution Aim : To bode the glocose tautness in some(prenominal) solutions which have the akin volume. Introduction : In this experiment, we have to envision glucose concentration in a particular solution. The nature of a glucose is a monosaccharide trim sugar. Since glucose will be oxidised, it symbolises as a reducing agent which will donates electrons that will be accepted by the purple begish one thousand permanganate. Thus, the beg purple colour of super pungent permanganate will be reduced into manganese ions. When the glucose acts as the reducing agent, this means the manganate(VII)ions will act as the oxidising agent. Thus, it will accept electrons and undergo reducing serve well that lead to the formation of the colorless solution. The equation for this reducing chemical rea ction is : MnO4- + 8H+ + 5e - ? Mn2+ + 4H2O In the experiment, sulphuric sexually transmitted disease of glass is added together with glucose and pottasium permanganate. This is because sulphuric acid acts as the gas pedal to the reaction inside the solution.
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Lastly, at the conclusion of the experiment, we can infer that the snip taken for the purple pink colour of honey oil permanganate to turn into colorless is dirrectly related to the concentration of glucose. Reasearch question : How does the opposite concentration of glucose solution which have the same volume affects the age taken for the pink colour of the potassium permanganate to! turn into colourless? Variables : Variables| | unit| | Indipendant| The concentration of the glucose solution| M| | Dependant| The time taken for the pink colour of the potassium permanganate to turn into colourless| s| | Controlled Variables| Volume/Untis| Possible set up on the result of experiment| Volume and concentration of sulphuric acid added to the glucose solution| 1M, 5 cm3| Sulphuric...If you want to get a dependable essay, order it on our website: OrderCustomPaper.com

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