Lab Title: "The Effect of Salt on the Boiling Point of Water" Lab Question: How does adding salt to water affects it’s boiling point? Prediction : In this paper‚ a newly proposed model based on solvation between pure solvent and salt for prediction of salt effect on vapor–liquid equilibria is presented by using only the vapor pressure depression data of pure solvent+salt systems that compose the mixed solvent with salt system Materials : 200 mL of distilled water‚ 2 beakers
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I expected‚ I found that it boiling point was 60C but in my experiment it was 30 C it’s the double of what it should be. Most of the sample like methanol and ethanol was pretty clos to the result that I found on internet. The trial that I did was Butanol again with the hot plates and it took of course much longer to boil and it started to boil before 105 °C like at 103 °C and I didn’t expect that happen maybe because of the boiling water it accelerated the boiling point. I don’t consider
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Pithing and Muscle Preparation. The method for pithing the frog and preparing the frog gastrocnemius muscle will be described by the instructor. The object of the pithing operation is to destroy specified parts of the central nervous system. In this case the frog is pithed as a means of immobilization and anaesthesia. Generally‚ pithing the spinal cord only is adequate. To skin the frog leg‚ cut the skin all around the upper end of the leg. Pull the skin down the leg‚ freeing it from
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Hypothesis: I think that in this experiment the results of the boiling point of each sample is going be slighly different from what I found on Internet. aim: my aim is to look at what temperature and how long the following alcohol (methanol‚ I-butanol‚ Ethanol and Hexane) reach their boiling point and comparing the results that I found on internet and mine. Materials: Alcohol: Ethanol‚ I-Butanol‚ Ethanol and Hexane Four Test tubes (boiling tube) Test tubes holder Data logger Hot plates Bunsen burner
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Taylor Dudley "White Frog" Mr. Murray Tuesday‚ October 21 White Frog “White Frog” is one of those remarkable movies that connects intensely with audiences who have experienced “feeling different” or being an outcast or not fitting into the popular crowd. The movie was about a popular‚ high schooled Chaz Young is the light of several people’s lives. None more than that of little bro Nick‚ whose painful social awkwardness has shut him off from nearly everyone else. Nick has a disease called Asperger
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Once upon a time there was a frog who croaked away in Bingle Bog. Every night from dusk to dawn‚ he croaked on and on. Other little animals around loathed his voice but they were left with no choice. The crass cacophony; a very loud and unpleasant noise blared out from the sumac tree. At whose foot the frog sang till the break of dawn. The stones‚ prayers‚ sticks‚ insults‚ complaints and bricks could not silence the frog’s determination to display his heart’s great pride and joy. One
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Background: As members of the class Amphibia‚ frogs may live some of their adult lives on land‚ but they must return to water to reproduce. Eggs are laid and fertilized in water. On the outside of the frog’s head are two external nares‚ or nostrils; two tympani‚ or eardrums; and two eyes‚ each of which has three lids. The third lid‚ called the nictitating membrane‚ is transparent. Inside the mouth are two internal nares‚ or openings into the nostrils; two vomerine teeth in the middle of the roof
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Dibble Dr. Martha Griffin English 1020 C07 1140 October 8‚ 2013 A Frog’s Gamble “A man’s character may be learned from the adjectives which he habitually uses in conversation(Mark Twain).” This is the main idea of “The Notorious Jumping Frog of Calaveras County” by Samuel Langhorne Clemens‚ or more commonly known by his pen name Mark Twain. Just like the quote‚ the Narrator learns about the character of Jim Smiley through a conversation with an old man named Simon Wheeler. The Narrator
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Frog Dissection Manual 1. 2. Place the frog on the dissecting pan. Do not pin it down. Use these descriptions and the picture to identify each of the following external structures. A. Head – the anterior end of the frog extending to and including the eardrums mouth – the large opening at the anterior end of the head made up of a maxilla and mandible maxilla – the upper jaw bone mandible – the lower jaw bone external nares (i.e. nostrils) – two small openings on the dorsal surface of the
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from the bed‚ she tiptoed through the boxes which lay everywhere and put a kettle of water onto boil. Waiting‚ she glanced over all her possessions‚ grateful she had the whole day before her. She scooped instant coffee into the cup and poured in now boiling water. Stirring the coffee‚ she tried to decide where to begin. She took a quick sip of coffee and searched her box of books. She ordered them neatly on a shelf. Then‚ she lifted her suitcase onto her bed. She unlatched the clasps and opened it and
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