Determination of Ascorbic Acid in Vitamin C Tablets Done by: lora ID #: Date:12/3/2011 Objectives: The aim of this experiment is to determine the weight of ascorbic acid in three vitamin C tablets by titrating it directly with KBrO3‚ then back titration by Na2S2O3. Introduction: Vitamin C is a weak acid and a water soluble substance and it is often called ascorbic acid. It is useful for many biological activities and main functions such as: it is used to provide reducing equivalents for biochemical
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perimeter of circle in c code. This c program makes a contrasting concept that how a return statement can return more than one value. Usually in C programming we make a call by value. This means that in general you cannot alter the actual arguments. But if desired‚ it can always be achieved through a call by reference. Using a call by reference intelligently we can make a function return more than one value at a time‚ which is not possible ordinarily. This is shown in the c program find area and perimeter
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************* ******** ************* September 26‚ 2011 Night and Life Is Beautiful Compare and Contrast Essay Night by Elie Wiesel and Life Is Beautiful directed by Roberto Benigni are both detailed stories of the Holocaust experienced by a father and a son. However‚ both feature different tones during the stories. Night uses a depressing and dark tone‚ while Life Is Beautiful incorporates an optimistic and joyful tone. Weisel recalls the many horrific acts witnessed and how he tried
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c++ 1. (10 points) Consider the usual algorithm to convert a fully parenthesized infix expression to a postfix expression. Suppose that you have read 10 input characters during a conversion and that the stack now contains these symbols: | | | + | | ( | bottom |___*___| Now‚ suppose that you read and process the 11th symbol of the input. Draw the stack for the case where the 11th symbol is:
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HKU820 BENJAMIN YEN AVIATION SPARE PARTS SUPPLY CHAIN MANAGEMENT OPTIMISATION AT CATHAY PACIFIC AIRWAYS LIMITED We have 2½ billion Hong Kong dollars worth of spare parts on our shelves. Managing these spare parts effectively is instrumental in ensuring the efficient operations of our airline. This presents a significant challenge to the engineering department. - Robert Taylor‚ manager of inventory operations‚ Cathay Pacific1 A profitable and financially sound commercial airline‚ Cathay
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Who’s in Charge? The Jim Davis Case Patty Mathew was required to attend the sales training provided by Jim. This training would really help them in increasing sales of bank services as she didn’t have any sales experience or sales knowledge. Selling services is an important part of business. Before that training Patty was more interested in expense account‚ which she can use for clients rather than on training. She didn’t attend the training and informed that she is sick. The main concern is that
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Hypothesis 7. Chapter Scheme 8. References Retail Store Design: Creating a Powerful Store Image 1. Introduction We ’ve heard it again and again - "You never get a second chance to make a first impression". Even though there are many influences at work in the shopping experience‚ the look of a store holds the most sway in enticing us through the doors. We even tend to sum up that initial in-store encounter in visual terms: a store is exciting‚ clean or well-organized or‚ at the other
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Research Question: How the amount of vitamin C in fruit juices affects its freshness and till what extent is the information provided on the pack by manufacturers is reliable? Background Information: Hypothesis: -fresh juices have more vitamin C than long-life -juice that is ‘not from concentrate’ is best in terms of vitamin content -if heat destroys vitamin C then heat-treated long-life juices will have lower concentrations -if heat destroys vitamin C then boiled fruit juice will have lower
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88‚ d = 11. (b) a = −29‚ d = 9 (c) a = 58237‚ d = 58168 (actual question is a = 58237‚ d = 58168 ) Solution: (a) Because 88 = 11・8 + 0‚ we have q = 8‚ r = 0. (The fact that r = 0 says that 11|88.) (b) Because −29 = 9・(−4) + 7‚ we have q = −4 and r = 7. (Note that although we can write −29 =9・(−3) + (−2)‚ we cannot use −2 as r because r is not allowed to be negative.) (c) a = d(q)+r 58237 = 58168(1) + 69 Quotient = 1‚ Remainder = 69 (c actual) We do not need to perform
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percentage of vitamin C (ascorbic acid ) between the fresh orange juice and artificial orange juice (Sunkist). Problem statement : Does have different types of fruit juice contain similar amount of vitamin c ? Objevtive: To analyse the concentration and percentage of different food sample by using titration method and state whether the percentage and concentration of vitamin C. Methodology: Theory : DCPIP can also be used as an indicator for Vitamin C. If vitamin C‚ which is a good reducing
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