King Abdulaziz University Faculty of Computing and Information Systems Fall Term 2011/1432-1433 Course Code: CPCS-202 Course Name: Programming I ________________________________________________________________ Problem 1: Write a program that asks the user to enter a favorite color‚ a favorite food‚ a favorite animal‚ and the first name of a friend or relative. The program should then print the following two lines‚ with the user’s input replacing the items in italics: I had a dream
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procedures of this laboratory will be used to gain a conceptual and practical understanding of separation techniques used to isolate monomers from their respective polymers. Namely‚ the techniques that will be explored are dialysis and gel filtration chromatography. In the remaining two experimental procedures‚ colorimetric assays will be used to detect the presence of certain carbohydrates. Glucose oxidase and Iodine Reactions will be performed in conjunction to demonstrate the procedure of such assays
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Purpose: Unknown mixtures will be separated by means of chromatography in which the mixture will be passed in a solution through a medium leaving behind components of the mixture at different rates‚ therefore‚ different spots on the absorbing substance. This will help determine the identity of unknown mixtures. The spot colors on the strip of filter paper and the Rf values of the unknown samples will be compared to those of known samples. To find the position of the spots on the strip of paper‚ we
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Title: Competing Nucleophiles (Exp 24‚ pp 211-221‚ pp 808-823‚ pp 836-842) Purpose: The purpose of this experiment is to determine the nucleophilic strength of chloride and bromide ions as it reacts with 1-butanol (n-butyl) and 2-methyl-2-propanol (t-butyl alcohol) under SN1 and SN2 conditions. Method: 40 g of ice and approximately 30 ml of sulfuric acid is cautiously added to a 100 mL beaker respectively. Weigh 7.6 g of ammonium chloride and 14.0 g of ammonium bromide and place it in
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different chemical properties of each compound. We will accomplish this by a separation procedure known as distillation‚ which relies on each compound having a distinct and separate boiling point. Our pure products will be analyzed with gas chromatography to determine the success of the distillation. Procedures The experiment was performed as stated in the course textbook: Pavia‚ D. L.‚ Lampman‚ G. M.‚ Kriz‚ G. S.‚ Engel‚ R. G. Introduction to Organic Laboratory Techniques: A Microscale Approach
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experience the release of excess gases within a thirty-minute time period. The white light experienced the most success by concluding the thirty minutes with eight floating disks out of ten. The Activity of Photosynthetic Pigments Silica gel chromatography can be used to determine what light wavelengths are used for photosynthesis. In this experiment‚ chlorophyll a‚ chlorophyll b‚ carotene‚ and xanthophyll were tested. The distance moved by molecule and the distance moved by the solvent is used
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raise by less than 0.06% as he is larger than an average male. 6. Name three methods for drug screening describe the advantages and disadvantages of each. Name Advantages Disadvantages Immunoassays High sensitivity Not 100% specific Thin Layer Chromatography Can identify hundreds of compounds in one run and is inexpensive Labour intensive and highly technical Ultraviolet-Visible Spectrophotometry Reliable compound recognition Cannot identify less
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Cotton candy History Cotton candy was first recorded in the 16th century.[4] At that time‚ spun sugar was an expensive‚ labor-intensive endeavor and was not generally available to the average person.[4] Machine-spun cotton candy was invented in 1897 by the dentist William Morrison and confectioner John C. Wharton and first introduced to a wide audience at the 1904 World’s Fair as "Fairy Floss"[5] with great success‚ selling 68‚655 boxes at the then-high price of 25¢‚ half the cost of admission
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Candy is a love for many people around the world young and old‚ but has anyone thought about what you are actually consuming. Plants‚ fruits‚ etc. that are used to make candy are produced with synthetic or chemical fertilizers‚ weeds are controlled with chemical herbicides and insecticides are used to manage pests and disease‚ all of those chemical are in your candy you consume. Along with chemicals there are artificial colors‚ flavors‚ and preservatives. Studies from American Academy of Pediatrics
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Gym Candy (Letter to a character) Dear Mick Johnson‚ As I was reading Gym Candy‚ by Carl Deuker‚ I chose to write you a letter because you are a very talented student athlete. I was captivated because I also am a student athlete and I know the struggles and pressures that come along with the expectations. I was amazed that you started on varsity football as a freshman which is extremely difficult and overly time consuming! You take pride in your athletic and what I was most intrigued
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