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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Throughout the experiments the size of the balloons stayed about the same size except for in experiment 3. Also the bottles that had more sugar had a stronger scent of alcohol and also contained more foam on top of the liquid. All yeast in each of the bottles seemed to have fermented at the same time and stopped/slowed down‚ the growing process‚ at the same time. Bottle 3 also would always overflow and the foam would fill the ballon in every experiment. Another trend with bottle 3 was that in the
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remains constant until it is completely frozen. However‚ in order to melt a substance must go through a energy change‚ creating the problem‚ “What energy changes occur when a liquid solidifies?”. To solve the problem‚ a hypothesis was proposed‚ stating “When a substance begins to solidify‚ it releases heat energy‚ because a substance
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Monica Perez Experiment 8: Acetylsalicylic Acid Experiment 01/25/2013 CHM Lab- 2211 Sec 0016 Instructor: Jennifer Reed Introduction: Commonly used as Aspirin‚ acetylsalicylic acid is an analgesic (pain reliever)‚ which is one of the products of the esterification reaction between salicylic acid and acetic anhydride. This esterification occurs since the hydroxyl group from the salicylic acid reacts with acetic anhydride to form an ester. In this experiment‚ we will be able to recreate
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Hypotheses and Predictions: The authors wanted to test if it is possible to detect increased metabolic work in two estuarine species (Hemigrapsus oregonensis and H. nudus) and relate this function to increased osmotic work by measuring oxygen consumption with respect to changes in temperature‚ salinity‚ and the gradient‚ which they defined as the difference in concentration between blood and the external medium. The authors predicted “because of seasonal variation in salinity it would appear quite
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GAP GENERATION 1. INTRODUCTION -Defination: differences between people of a younger generation and their elders‚ especially between a child and their parent’s generation. -Gap generation is more and more today 2. BODY a. Reasons - Firstly‚ there are some different opinions between parents and children of their career‚ education and love. • Of ideas on general conduct comprising dress‚ food habits etc. • Morality‚ marriage & career • Of tastes on art‚ music‚ literature‚ and in short total
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sometimes that makes the child upset or angry. If you start them off young you can find out if they like it or not and it could save them a lot of time and also save you money. Also if you find out they don’t like the sport you have enough time to find out what else they might be interested in like another sport or getting involved in the community. Another reason is because starting them off young will build their strength and stamina It will also teach them the proper way to perform the actions safely
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can it generation gap. And both sides (parents and children) should be patient and tactful and it’s the only way to settle down all the problems and stay friends. Youth is a very important period in the life of man. This is the time when a person discovers the world and tries to determine the place in the universe. Young people face lots of problems which are very important for them and do not differ much from those that once their parents had to deal with. At the same time every generation is unique
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Running Head: BOOMERANG GENERATION Boomerang Generation: Economical and Psychological Issues Angelica Guzman Cal State San Marcos HD 101-02 BOOMERANG GENERATION 2 The boomerang generation consists of young adults ranging from the ages of 18-34 who temporary move out of their home and experience independence on their own for a time and then “boomerang right back” into their parents home (Pew Research 2012). This generation raises a question whether these young adults move back in and
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Lily McBride Ms. Herring 7th Grade ELA 11-9-17 What experiments were performed on victims of the Holocaust? The Holocaust is an event that will truly go down as the biggest genocide in history. Now let’s take a closer more in-depth look at the experiments. The experiments of the Holocaust were targeted toward anyone who didn’t fit the perfect format. It was one of the most horrific things possible. There were many experiments conducted during the Holocaust‚ and they were arguably the most horrific
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