Investigating the vitamin C content of fruits and fruit juice Aim: In this investigation‚ I aim to measure and compare whether there is a higher content of vitamin C in a fruit or a juice by measuring the volume of the sample required to decolourise a solution of dichlorophenolindophenol (DCPIP). Introduction: For this experiment‚ I aim to investigate and compare the content of vitamin C in the fruit against the fruit juice. The theory of this method is a titration with dichlorophenolindophenol
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Engineering Computer Programming (ENG236) Homework 1 (Note: the format of Programming Test 1 is very similar to this homework.) A. Background Sorting is one of the most common operations in computing. There are many studies on the methods of sorting and many fast algorithms have been devised. Nevertheless‚ if the number of items to be sorted is not that many‚ some simple approaches can also be very effective. The following is one of them. Assume that A‚ B‚ C‚ D‚ E are 5 variables storing 5 numbers respectively;
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IB Biology Lab – Vitamin C content of food Aim: To compare the vitamin C content of different fruits using the decolourisation of DCPIP from blue to clear as the indicator. • You first need to estimate the volume of a known concentration of vitamin C solution required to decolourise 2 cm3 of DCPIP solution. • Then you need to determine the volume of fruit juice that decolourises 2 cm3 of DCPIP solution. This gives an estimate of the concentration of vitamin C in fruit juice. • This
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unknown solution C ABSTRACT Liquid C and solid C were both extracted from unknown solution by first using chemically active liquid-liquid extract‚ followed by vacuum filtration. Liquid C and solid C were then purified with the use of simple distillation and recrystallization respectively. Through the process of recrystallization‚ the percentage purity of solid C was found to be 6.01%. The melting point range of purified solid C was 117.0 – 119.0C while the boiling point of liquid C was found to
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Determination of Vitamin C by an Iodometric Titration Purpose: The goal of this lab is to determine the concentration of vitamin C in juices and Real Lemon. A redox titration‚ involving an iodometric method‚ will be used to do the analysis. The samples will be classified by their Vitamin C content. Introduction: Although most mammals can synthesize vitamin C‚ or ascorbic acid (C6H8O6)‚ from sugars‚ man must ingest considerable quantities of this substance. The National Academy of Sciences recommends
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3.3. Atomic H/C and O/C ratio The Atomic H/C and O/C for heavy oil obtained from different HDO solvent is presented in Fig. 2. Conversion and removal of unstable acid‚ aldehyde‚ sugar and water might reduce the O/C ratio. The atomic ratio was calculated by the value of water excluded heavy oil‚ since H/C ratio could also decrease‚ despite hydrogenation. Compared with that of bio-oil (0.9)‚ atomic O/C ratio was effectively reduced via HDO reaction (0.2-0.8)‚ H/C ratio reduced 1.0-2.0 (compared with
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1CA1 Philippine Literature A Critical Analysis of Sexual Politics by Kate Millett Rebellion /rɪˈbɛl yən/ n. An act or a show of defiance toward an authority or established convention. How exactly does a rebellion begin? Do people with the same beliefs suddenly gather around and decide they that want to overthrow authority? Does a strong-willed‚ gifted leader call upon followers to help make real his or her endeavors? Or is it simply an inevitable occurrence that takes place at any given moment
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Describe the scene at a train station It is 8 o’clock in the morning at Liverpool train station‚ the busiest hour throughout the whole day‚ it’s also known as the rush hour. Trains of all imaginable colours gradually draw to a halt‚ causing a slightly burned smell from the brakes. As the automatic doors fly open‚ continuous flows start of people shoving and pushing‚ rushing to get off into the already crowded station. The noise of the tannoy is hidden beneath the murmur of the crowds of people
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In Waniek’s “The Century Quilt”‚ the author’s purpose is to show the reader why this particular quilt is so important to her. The extensive important behind the quilt is portrayed very convincingly with the use of literary devices such as imagery (colors)‚ vivid descriptions of certain details‚ and the most dominant device being a reminiscent tone. These devices work together to present a very clear understanding of how the author feels towards her century quilt. This particular poem doesn’t follow
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Topics in C Programming Bob Hain Introduction This document is not intended to be a text on C programming. Because many of you may not have had the opportunity to use or practice C programming‚ we are attempting to provide a brief description of some of the elements of C which you will need in your laboratory work. We will leave out many topics but will try to provide simple‚ although sometimes incomplete‚ explanations of some of the basic elements of C. Why C? The computer industry is changing
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