Experiment 2&3 Recrystallization and Melting Points Determinantion of Benzoic Acid Abstract In experiment 2‚ recrystallization was used to purify the crude benzoic acid extracted from a mixture during experiment 1. Then a percent recovery for this recrystallization process was calculated. In experiment 3‚ the melting point ranges of the crude and purified benzoic acid were both determined by using Melt Temp Apparatus. Introduction Recrystallization is a purification technique for non-volatile
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the field of counseling. To date‚ there are several techniques that have been used to integrate Christianity and psychology. Crabb (1977) dissected these attempts and categorized them into four distinct approaches labeled: separate but equal‚ tossed salad‚ nothing buttery‚ and spoiling the Egyptians (p. 33-47). The separate but equal method does not truly encapsulating integration. This approach sees biblical principles and psychological principles as holding certain truths; however the relationship
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Stew Recipes Pot-au-feu 【Ingredients】 400g sparerib 1/4 cabbage 1 carrot 2 potato 1/4 radish 4 sausage 1 bay leave 1 tsp. salt A pinch of white pepper 500ml water 3 tbsp. white wine 1 tbsp. olive oil Extra mustard powder 【Recipe】 Before cooking a Pot-au-feu‚ I looked the Pot-au-feu in the cooking dictionary for reviewing it. To paraphrase‚ it is said that "One kind of soup‚ simmering a big piece of beef meat with bone and vegetables‚" and I was impressed with ’with bone’ part. At this
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Melting Permafrost’s Negative Contribution to Global Warming [pic] Global Warming is a problem that impacts the entire planet. The average temperature of our planet has risen about 0.5°C in the last 100 years. According to field biologist Wolter in 2008‚ the melting of permafrost in the colder regions of the world is mostly responsible for global warming; causing the world’s climate to be at risk. (Wolter‚ 2008) “Permafrost is any rock or soil that remains frozen constantly
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Imagine floating on a block of ice thats melting‚ in the middle of the arctic ocean with nothing around you. How about spending time with your family‚ on a submarine exploration of downtown Miami. Do these two scenarios sound appealing to you? I hope not. These two scenarios could eventually turn into reality. PowerPlanet power plants are filling our air with pollution. This air pollution is causing a domino effect that melts ice caps‚ which kills arctic species by destroying their habitats and it
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weighings. This procedure was repeated two more times and the average of the three measurements was recorded as the density. The boiling point was measured using a microscale device consisting of a capillary tube‚ a microcapillary tube and a melting point apparatus. The microcapillary tube was sealed on one end by rotating the end gently in a Bunsen burner flame until it was sealed. Care was taken to avoid overheating the tube which would cause it to bend. The larger capillary tube was heated
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into slave labour camps under the guise of equality. Pol Pot‚ leader of the Khmer Rouge‚ was educated in Paris where he became familiar with Marxist Ideology. He wanted to revolutionise Cambodia by turning it into a giant agricultural food bowl‚ farmed by its people. This change was marked by renaming Cambodia Kampuchea and in recognition of the new regime and the start of a new life in a new country‚ it was declared "Year Zero." Pol Pot went much further than his initial Marxist ideologies and
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The Cambodian Genocide took place because a man named Pol Pot made an army called the Khmer Rouge and set out to create the perfect society. However‚ his method of creating this society involved millions of innocent people dying. He killed people to try and eliminate the old society. Pol Pot and the Khmer Rouge used the fear of others to shape their identity by making them feel safe‚ committing mass killings‚ and deprivation. In 1954 Cambodia became independent‚ after being ruled by the French.
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smoking marijuana. What most Americans don’t realize is the benefits that can come from legalizing marijuana because their minds are clouded by the stereotypes associated with the average ‘pot smoker’. Dismiss the corny jokes and stereotypes for a second and consider the truths that are unveiled. In Timothy Egan’s “Give Pot a Chance‚” Egan looks beyond the stigma of smoking weed and points out the benefits that will come from legalization. Although the government is wrongfully hindering us from legalizing
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------------------------------------------------- MELTING POINT AND BOILING POINT OF ORGANIC COMPOUNDS ------------------------------------------------- ABSTRACT The melting point (MP) and the boiling point (BP) are probably the most widely used physical constant in the field of science. Determining the boiling point and the melting point of a compound helps you to characterize an unknown solid in a quick‚ easy and cheap way. The temperature at which a compound turns from a solid state to a liquid state is known to be the melting point.
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