_____________________________________________________________ Purpose of this Lab What is the goal of this lab? What question is it trying to answer‚ or what problem is it trying to explain? Too see the temperature of higher salt concentrated water; what water has a higher boiling point. Hypothesis After reading the lab instructions - but before starting the lab - record your best “educated guess” about what will happen in the experiment. What hypothesis can you generate about the effect of adding salt to water? The water
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do three different tests‚ dissolving the water in boiling‚ warm and cool water. The sugar in the boiling water will dissolve the fastest. The sugar added to the cool water will dissolve the slowest. Reason According to the state of matter theory‚ the particles in a gas move faster than in a liquid‚ which I will use to infer that the hotter the water is and closer to a gas‚ the faster the particles move. Therefore when sugar is added to the boiling water it will break down faster as the particles
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take for granted. If you are camping and hiking you won’t always have access to this source of healthy‚ potable water. Unfortunately‚ many water sources in the wilderness include microorganisms‚ bacteria‚ viruses and contaminants. 1. Boiling * Boiling water is the most effective way to kill all disease-causing microorganisms‚ such as E. coli‚ Cryptosporidium and Giardia lamblia‚ which are present in lakes and rivers. Depending on your elevation level‚ you should boil water for different
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weight is 151.2 g/mol. The melting point of pure compound is in the range of 169-172 ℃. During lab Paracetamol medication was dissolved in water‚ purified and recrystallized again. The purpose of the experiment was to learn basic recrystallization techniques that include hot and cold filtration. During experimental procedure sample was purified and its final melting point was measured. Procedure 1.0 g of impure Paracetamol was added to the flask with 2 boiling chips. 30 mL of distilled water were
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melting point of the unknown compound. The theory is that if a substance is pure‚ it will have a very specific melting point‚ within one or two degrees Celsius. This is in opposition to a mixed‚ or contaminated substance‚ which will have a broad melting range. Therefore‚ when we mix our unknown with samples of phenacetin and acetanilide‚ whichever mixture has a more accurate melting point will tell us what our unknown is. It is also important to make sure that the resulting melting points are close
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and Melting Points Organic Chemistry 2423 Lab Report: Recrystallization Abstract: The purpose of this lab was to purify an unknown compound by recrystallization. Taking an unknown compound and identifying it by purifying it from its impurities through the use of hot gravity filtration. Then to determine the unknown you were to take the melting point. An unknown compound was recrystallized from hot water to produce 0.99 grams (67% recovery). The pure unknown compound had a melting point of 127.0-128
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pig lures the wolf into a boiling pot of water and eats him in the end. Due to these actions‚ the third pig is the most admirable of the three. The third pig is the most admirable because he is clever‚ ambitious and hardworking. The first character trait that shows that the third pig is admirable is clever. This could be shown in many ways throughout the story. However‚ one of the ways that best shows it is when the little pig is clever enough to open the pot of boiling water. The
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“Koobideh Kabab (Cholo Kabab)” Koobideh Kabab known as Cholo Kabab is one of the most famous dishes in the Iranian culture. Although many in the West admire Cholo Kabob‚ they have no idea how it’s prepared and are sometimes shocked when they find out cooking Cholo Kabab is very simple. By understanding the steps needed in order to make Cholo Kabab everyone can not only incorporate this delicious meal into their choice of foods but also get a peek into the history and background of the Persian
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forty-five seconds to die in boiling water.” I took some time to think and at first I came up with putting a lobster into a boiling pot of water. But I couldn’t find the metaphor in that because that was the main idea I wanted people to see. So I decided to draw a healthy tree falling into a wood chipper and how when it goes through a wood chipper‚ the time it takes to actually shred the wood into pieces of bark has its own time process just like when putting a lobster into a boiling pot of water. I thought
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2510 Laboratory Report: Recrystallization and Melting Points Cover Page: Recrystallization and Melting Points by Lab Instructor: January 28‚ 2014 Purpose: The purpose of this experiment was to recrystallize a 95% pure sample of benzoic acid contaminated with approximately 5% salicylic acid using two different methods to determine the melting points and discover the impurities of the substance. Results:
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