of the Upper Nepean Catchment. The following is a summary of factors that affect water quality. Water may contain several ions‚ namely anions and cations which are toxic to humans. Hardness is the scum on water surface from significant concentrations of calcium and magnesium ions. Total dissolved solids is the measure of dissolved solids that are ionic in water. Turbidity is the presence of suspended solids in water which reduces penetration of light‚ resulting in a decrease concentration of
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CHE 242 Tutorial 3: Problems & Answers Week 4: Feb 2- 6‚ 2009 1. Consider a gas that occupies 1.00 dm3 at a pressure of 2.00 bar. If the gas is compressed isothermally at constant external pressure‚ Pext‚ so that the final volume is 0.500 dm3‚ what is the smallest value Pext can have? Calculate the work involved using this value of Pext. Solution For compression to occur‚ the value of Pext must be at least as large as the final pressure of the gas. P1 = 2.00 bar‚ V1 = 1.00 dm3‚ V2 = 0.500
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Baking Project There are several chemical reactions taking place in the general baking of cakes. Every ingredient has its own function and causes a different reaction Synthesis: * Egg yolks (modify molecule’s structure) helps the oil-based and water-based components of the cake mix together. When eggs are cooked‚ the protein molecules become uncurled when exposed to heat and create new molecular bonds with other nearby protein molecules. When the egg is completely cooked‚ it helps form a
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Are our lives governed by fate or free will? Our lives are governed by free will. In the books Chinese Cinderella and Twisted the main characters use their free will to make choices that have consequences on their lives. Chinese Cinderella‚ by Adeline Yen Mah Chinese Cinderella is a story of a Chinese girl growing up Shanghai and Hong Kong in the 1940’s. Adeline was made to feel that her birth was the reason her mother died. Her siblings blamed her and her father and stepmother had
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First day back at placement after Easter Holiday‚ I greeted children in to class as their parents dropped them in to class in the morning. Straight away children where learning through play. My morning duty was to supervise children and play with them. There was Lego‚ foam on a table‚ a table with sand and toys set out for the children. Girl A speaks Bengali at the moment learning to speak English. But she said whistle in Bengali as she was pouring sand through a windmill toy. Girl B described
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In relation to my peers‚ I happen to be occasionally stressed. I am a type of person that needs to have everything spotless and put away‚ in other words a “neat freak”. Because I have my in-laws living with me I would feel bad if I were to tell them to put their things away or wash their dishes. There are times when I find things that are just lying around and counters are dirty after cooking. This is when I feel stressed because I at the end of the night I am the one cleaning it up. I do understand
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In this quote‚ Chief Bromden says‚ “I been silent so long it’s going to roar out of me like floodwaters and you think the guy telling this is ranting and raving my God; you think this is too horrible to have really happened‚ this is too awful to be the truth! But‚ please. It’s still hard for me to have a clear mind thinking on it. But it’s the truth even if it didn’t happen.”(Act 1 32) Chief Bromden‚ a long-term patient in Nurse Ratcheds psychiatric ward‚ narrates the events of the novel. The novel
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desire of someone or something but a lot of times it’s over a celebrity‚ which in Deborah King’s article had a lot to say about. In the article‚ The Impact Celebrities Have on Our Lives‚ Deborah King argues on how the fascination of celebrities is unhealthy and how celebrities have a negative and a positive influence on our generation and children. I agree with Deborah King that celebrities have a negative and positive
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Mobile phones have become a necessity for life‚ and without this thin gadget‚ many people would feel incomplete. We now use mobile phones in our everyday life as a phone‚ voice recorder‚ diary‚ alarm clock‚ watch and for making and confirming appointments‚ dealing with clients etc. Mobile phones are for many‚ fundamental when organising their lives. Mobile phones are not simply an electronic gadget‚ and it is difficult to define in one way about the usage of mobile phones. With the advances of technology
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WHY IS IT IMPORTANT TO PROTECT OUR FORESTS & THE ANIMALS THAT LIVE THERE? WHY IS IT IMPORTANT TO PROTECT OUR FORESTS & THE ANIMALS THAT LIVE THERE Forests are essential for life on Earth. They give us shade and shelter‚ refuge and refreshment‚ clean air and water. Today‚ with a growing global population and subsequent demand for forest products‚ the forests of the world are at risk from widespread deforestation and degradation. Ancient forests are in crisis throughout the world. Home to millions
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