Immigration affects citizens who live in the United States as well as immigrants who come to the United States. There are positive and negative affects of immigration. One negative result is that many immigrants take away jobs from native workers. Nevertheless‚ many Americans benefit from that because Americans perform jobs that are very difficult and low-paying. Immigration also affects refugees who come to the United States because they can not get the job they want. However‚ one positive outcome
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GIVEN: TO DESIGN A 1000TPD CAPACITY H2SO4 ACID PLANT BASIS: 1 HOUR OF OPERATION. PURITY: PRODUCT WHICH IS TO BE MANUFACTURED IS ASSUMED TO HAVE STRENGTH OF 98% ACID. 1000TPD implies that we have Acid 1000 x 10 / 24 = 41666.67 Kg/Hr of 3 With 98% purity‚ the acid that is produced per hour = (98 x 41666.67) / 100 = 40833.34 Kg/Hr Kmoles of Sulfuric acid to be produced = 40833.34 / 98 = 416.667 Kmoles/Hr It’s assumed that overall absorption of the acid is 100 % = 416.667 / 1.0 Then‚ SO3 required
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in developing countries the economy is poor and they don’t have the resources to maintain the originality of these artefacts. The Elgin Marbles‚ a significant denominator of Greek History‚ are a present concern under the debate‚ ‘Who owns the past?’ generally between curators and the Greek government. Initially‚ the Greeks held possession of the Elgin Marbles‚ in Athens but they were removed by the British Lord
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Reaction Rates of Barley Alpha Amylase with Starch at Specific pH ’s and Temperatures Page 1 Abstract Enzyme ’s are used as catalysts in certain reactions. They help lower the activation energy needed for the reaction to go to completion. At optimum temperature and pH the amount of collisions of substrate and enzyme is at its highest‚ any deviation from the optimum temperature and pH will result in the denaturization of the enzyme. The purpose of this experiment is to find the optimum
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If you have marble flooring and you want your marble flooring to look great‚ you need to take proper care of your flooring. A large part of taking care of marble flooring involves waxing‚ stripping and polishing your floors. Over time‚ the wax used to make your marble floors shine tends to start to build up and makes your floors look foggy instead of shiny. When this happens‚ you need to remove the wax on your marble floors through a process called stripping. Necessary Supplies You will not need
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facts to support it. Although a theory can be proved wrong‚ it cannot be proved correct‚ for it is always open to modification. | | 5. | | Which of the following is an intensive quantity? Your Answer: | density of a substance | | | Density does not depend on the amount of substance. | | 6. | | Which number is incorrectly labeled? Your Answer: | 4.8 x 10-6 mL = 4.8 microliters | | | 1 microliter is equal to 1 x 10-3 mL. | | 7. | | Which of the following properties listed below
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An Investigation on the rate of reaction of the enzyme Catalase on the substrate Hydrogen peroxide. Plan Aim: To investigate the rate of the effect of Catalase on hydrogen peroxide. Introduction This investigation will be carried out to investigate the rate of reaction of the enzyme catalase on the substrate hydrogen peroxide. Enzymes are biological catalysts‚ which speed up the rate of reaction without being used up during the reaction‚ which take place in living organisms. They do this by
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31) QUALITY OF DRIED FOODS AND DETERIORATIVE REACTIONS DURING DRYING Consumer demand has increased for processed products that keep more of their original characteristics. In industrial terms‚ this requires the development of operations that minimize the adverse effects of processing. The effect of food processing on finished product quality ultimately determines the usefulness and commercial viability of that unit process operation. In the particular case of food drying this indicates that loss
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Acids And BAses Acids And BAses 8.1 8.2 8.3 8.4 18.1 18.2 18.3 18.4 18.5 Theories of acids and bases Properties of acids and bases Strong and weak acids & bases The pH scale Calculations involving acids and bases (AHL) Buffer solutions (AHL) Salt hydrolysis (AHL) Acid-base titrations (AHL) Indicators (AHL) 8 8.1 THeORies OF Acids And BAses 8.1.1 Define acids and bases according to the Brønsted–Lowry and Lewis theories. 8.1.2 Deduce whether or not a species could act as a Brønsted–Lowry
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Acid Property #1: The word acid comes from the Latin word acere‚ which means "sour." All acids taste sour. Well known from ancient times were vinegar‚ sour milk and lemon juice. Aspirin (scientific name: acetylsalicylic acid) tastes sour if you don’t swallow it fast enough. Other languages derive their word for acid from the meaning of sour. So‚ in France‚ we have acide. In Germany‚ we have säure from saure and in Russia‚ kislota from kisly. Base Property #1: The word "base" has a more complex
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