was swirled until the greatest amount of each solid was dissolved. Each solution was spotted along a labeled starting line on the silica gel TLC plate. The TLC plate was put into a developing chamber containing 200:1 acetic acid and allowed to developed until the solvent reached almost to the top of the TLC plate‚ which took about 10 minutes. When the TLC plate finished developing‚ I observed the plate under UV light and noticed that the salicylamide was the only spot that fluoresced purple while
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As we know‚ the TLC is a separation technique that has two phases: the stationary phase and mobile phase. The stationary phase is silica gel (SiO2) which is very polar compound‚ while the mobile phase is 0.5% acetic acid which has less polar. Also‚ as we know‚ the compound will rather to stay with stationary phase or travel with mobile phase depend on its polarity. The result show as that the polarity of the solvent is the key factor for the compound to travel with it or stay in stationary phase
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Observation #1 Toddlers The name of the child that is being observed is Rachael. She is a female toddler who weighs 26 pounds and is 32 ½ inches tall. According to biosocial development most children‚ by 24 months‚ weigh almost 30 pounds and are between 32 and 36 inches tall. According to the data of the United States‚ Rachael weight of 28 pounds lands between the 10th and the 50th girls percentiles‚ which are 22 ½ pounds and 26 ½ pounds. Her height of 32 ½ is in the 10th girls
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Speech Delay. Topic: Speech delay in Toddlers General Purpose: To Inform Specific Purpose: To inform my audience on speech delay in toddlers the causes of speech delay and what we can do to help them. I. INTRODUCTION. A. Ma‚ Ma I want cup‚ I want ducie Ma‚ Ma I want duice say juice duice D’marion you can say it say juice duice baby don’t get frustrated you can do it. [Transition:] Hi my name is Jamie Knight B. THESIS STATEMENT: Many toddlers have been diagnose with speech delay and
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Summary for Infant/Toddler Environment Rating Scale Report (ITERS-R) I observed and evaluated the toddler class that composed of eight (8) children varying from 1-2 years of age. There were 2 teachers in the class. Space and Furnishing: There was no good ventilation‚ The glass windows are fixed permanently so ventilation can not be controlled through windows. There was door to outside going to play yard but it can not count as ventilation
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TLC FULL LAB REPORT Objective: The purpose of this experiment was to identify compounds in a mixture by Rf values and to determine the best solvent to use. Also is the analysis of mixtures before‚ during and separation. Possible solvents: Hexane MW- 86.17 g/mol Hazards-flammable‚ harmful if swallowed Melting pt / boiling pt (degree Celsius) - 69 Density-.6548 g/ml [pic] Methanol MW-32.04 g/mol Hazards- flammable‚ eye irritant Melting pt / boiling pt- 65 Density-.7918 g/ml [pic]
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Assessing Infants and Toddlers Nichole Spiller ECE 354: Assessment & Intervention during Early Childhood Instructor: Robin Skeen Monday‚ October 1‚ 2012 Assessing Infants and Toddlers Assessing infants and toddlers is commonly used to determine if children are meeting their developmental milestones or if they are showing any signs of developmental delays or disabilities. Many types of standardized tests are available for use with infants and young children; all are psychological
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attachment the emotional relationship is not as easy to see or document. The quality of attachment that an infant forms is largely determined by how the adult responds when the child’s attachment system is activated. “Nurturing Attachment in infants and Toddlers” In the article “Attachment: what works” states‚ Children’s behavior tells us whether they are experiencing secure attachments or insecure attachment. Their actions tell us what they think about themselves‚ others‚ and relationships. If a child
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Name: Bill Marano Due Date: 4-1-13 Experiment Title: TLC Analysis of Analgesic Drugs Purpose: The purpose of this experiment is to identify the brand name of an unknown commercial analgesic product by TLC analysis. Unknown #1 solution was run against standard solutions of individual analgesics. The components of the unknown product were identified by comparing characteristic traits‚ such as Rf‚ fluorescence and iodine staining‚ to those exhibited by the standards. The name of the commercial product
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Internet and Children Are children smarter (or more socialized) because of the Internet? Submitted By Tiara Williams Submitted To Mrs. D. Hailey‚ Teacher English IV CP May 6‚ 2014 For most children and teenagers‚ using the Internet has joined watching television and talking on the phone in the repertoire of typical behavior. They found that children who used the Internet more had higher scores on standardized reading tests after six months‚ and higher grade point averages one year and 16 months
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