------------------------------------------------------------------------------------------------------------- Title of experiment The determination of vitamin C. Aim(s) of the experiment (objectives) To determine the concentration of vitamin C in different kinds of juices. Hypothesis Freshly squeezed juice will have the most vitamin C compared to the other types of juices and drinks‚ because the fruit is picked fresh‚ and it is not stored‚ preserved or exposed to oxygen. Chemicals and materials
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Associate Level Material Appendix C JavaScript® Code for Error Handling Read the directions carefully and write JavaScript® code that addresses the requirements. Copy your code directly into this appendix document and post your assignment. 1. Write JavaScript® code that anticipates and handles an error for an expected numeric field. This code is executed on keypress‚ and the entered value is saved for you in a variable called enteredChar. Include the try block of JavaScript® statements needed
Free Programming language Variable Statement
Determination of the concentration of vitamin C in fruits/vegetables by using the DCPIP test (2008) Principle : Vitamin C is a strong reducing agent. It can decolorize the blue dye DCPIP. The amount of vitamin C in a food sample can be estimated by the amount of it that is used to decolorize a fixed amount of DCPIP. Apparatus : Test tube‚ clean and dry Test tube rack 5 ml syringe or a good quality squeezing pipette 1 ml pipette
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How is Vitamin C manufactured? Ascorbic Acid Also known as: l-ascorbic acid‚ vitamin C‚ ascorbate A six carbon compound related to glucose. It is found naturally in citrus fruits and many vegetables. Ascorbic acid is an essential nutrient in human diets‚ and necessary to maintain connective tissue and bone. Its biologically active form‚ vitamin C‚ functions as a reducing agent and coenzyme in several metabolic pathways. Vitamin C is considered an antioxidant. http://pubchem.ncbi.nlm.nih.gov/summary/summary
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Madame C. J. Walker was born Sarah Breedlove from Owen and Minerva Breedlove on a cotton plantation. Her parents were recently freed slaves; therefore‚ Sarah‚ the 5th child‚ was free born. In 1875‚ her mother died‚ and her father passed the following year due to unknown causes‚ which made Sarah a 7 year old orphan. Sarah was sent to live with her sister Louvinia and brother-in law. In 1877‚ the three moves to Vicksburg‚ Mississippi where Sarah picked cotton and most likely employed with household
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Cryptococcus neoformans is an encapsulated yeast and an obligate aerobe that lives in the environment throughout the world both in plants and animals. It is often found in bird excrement. People can get infected with C. neoformans through breathing in the microscopic fungus‚ although most people who get exposed to the fungus never get sick from it. Most cases of this infection occur in people who have weakened immune system‚ mainly those who have HIV/AIDS. In 1894‚ Busse‚ a pathologist‚ first described
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studied the defense evoked venom of three C. geographus. The significance of their venom is the paralytic toxins‚ which makes the most of this venom. The toxicity of the venom is needed to attack the prey in a high-speed. They also showed a correlation between the size of the animals and the injected venom. Despite their little size and slow-movement‚ they express a defensive mechanism‚ they extend their proboscis and inject the paralytic toxin which is lethal. C. geographus‚ usually hunt during night
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Some cases Vitamin C has been proven harmful. The only reason we believe that Vitamin C is good for us in large doses is because of a man named Linus Pauling. Linus Pauling was an American chemist‚ biochemist‚ peace activist‚ author‚ and educator. He was the only person to receive two noble prizes by himself
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ethical framework that focuses on the outcomes or results of actions. In fact‚ its name comes from the Greek word Telos‚ which means “end.” The two most influential developers of the utilitarian viewpoint were Englishmen Jeremy Bentham (1748–1832) and John Stuart Mill (1806–1873). Under this framework‚ acting ethically means making decisions and taking actions that benefit people by maximizing “good” and minimizing “bad.” Outcomes‚ results‚ or goals are the focus—not the action taken to achieve them
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a. resources are scarce b. goods and services are not scarce c. incomes fluctuate with business cycles d. people‚ by nature‚ tend to disagree 2. Which of the following examples does not illustrate the principle represented by the adage‚ "There is no such thing as a free lunch"? a. Joe needs to pay his rent and his electric bill b. Pete must choose between buying a new flat screen television and buying his textbooks for this semester c. Kevin must decide between studying for his economics exam and
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