PH at the UN Alfredo Vidal Ceballos 7/10/2014 Group Support Part 1: Solution Group Name and M. cons. Chem formula Type Experimental pH 1 Deidre Acetic Acid 0.1M HC2H3O2 Weak Acid 3.03 3.03 2 Acetic Acid 1M HC2H3O2 Weak Acid 2.59 2.54 3 Hydrochloric Acid 0.5M HClStrong Base 0.85 0.90 4 Jonah Nitric Acid 0.1M HNO3 Strong Acid 2.14 2.14 5 Sodium Acetate 1M NaC2H3O2 Weak Base 9.42 9.42 6 Potassium Dihydrogen Phosphate 0.1M KH2PO4 Weak Acid 5.47 5.47 7 Andy Potassium Hydrogen Phosphate 0
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pH pH means Power of Hydrogen or Potential of Hydrogen. pH is a scale of acidity from 0 to 14. It tells how acidic or alkaline a substance is. More acidic solutions have lower pH. More alkaline solutions have higher pH. Substances which are not acidic or alkaline i.e neutral usually have a pH of around 7. Acids have a pH less than 7. Alkalis have a pH greater than 7. There are a lot of ways for finding the pH of something. One way is to use litmus paper. The pH paper is able to tell how strong
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Chapter 4 Solutions 2. You have just won $10 million in the state lottery which promises to pay you $1 million (tax free) every year for the next ten years. Have you really won $10 million? No‚ because the present discounted value of these payments is necessarily less than $10 million as long as the interest rate is greater than zero. 3. If the interest rate is 10%‚ what is the present value of a security that pays you $1‚100 next year‚ $1‚210 the year after‚ and $1‚331 the year after
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Question 1 Critique Dr. Honeydew’s report. Specifically‚ discuss what is missing and how the missing information should have been presented. First the PH measurements‚ Dr. honey dew does not explain how the PH device was calibrated or if the blood sample was added or mixed with anything prior to the measuring of the pH (like water‚ etc.). In regards to the absorption spectroscopy‚ the method by which the concentration was obtained is questionable. Was the concentration known before the experiment
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of solutions and test their pH. Due to materials available pH strips were the only testing tools available. A table is setup to compare the strip color to its pH level. Four known solutions including bleach‚ lemon juice‚ soda‚ and baking soda were used. There was also an unknown solution in which the pH level was used to determine which solution it was. The pH scale is 1-14‚ a pH of 7 is neutral‚ less than 7 is acidic‚ and greater than 7 is acidic. Materials: * pH strips * 20 test tubes
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Through the many years of Ho Chi Minh’s leadership‚ Vietnam had been led into independence and unity. From an early age‚ he had fought long and hard to gain the independent status of Vietnam. He believed in what Vietnam deserved to have. There were many hurdles during his leadership‚ but he did not let any of them get in his way. Would Vietnam be the Vietnam they are today without Ho Chi Minh? This idealistic and motivated leader founded the Vietnamese Communist Party‚ and was also the President
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Melanie McGivern. Access to nursing Group 2 Effects of pH on enzyme activity Contents Front cover Aim Introduction Hypothesis Prediction Variables Materials Methods Results Discussion Conclusion Bibliography Aim The aim of the experiment is to see the enzyme amylase catalyse starch in a chemical reaction. | | Introduction Enzymes are proteins. They act as catalysts‚ allowing chemical reactions to take
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Reaction on Gung Ho movie When a Japanese automaker takes over a failed American auto plant‚ differences between American and Japanese work ethics threaten to close the plant. The local auto plant in Hadleyville‚ Pennsylvania‚ which supplied most of the town’s jobs‚ has been closed for nine months. Former foreman Hunt Stevenson (Michael Keaton) goes to Tokyo to try to convince the Assan Motors Corporation to reopen the plant. The Japanese company agrees‚ and upon their arrival in the U.S.‚
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1. Introduction: The Optimum currency areas theory is the seminal contributions developed by Mundell (1961)‚ it attempts to answer a question under which conditions a certain country would like to join a fixed exchange rates system. According to Krugman (2000)‚ if the monetary efficiency gain of one country exceeds its economic stability loss‚ the country will wish to join a monetary union/ a fixed exchange rate system. In this paper‚ the theory of optimum currency areas will be analysed in part
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pH and Microbial Growth Introduction: Each organism has an optimum environment for growth‚ which includes pH level. Organisms that grow at near neutral pH levels are called neutrophiles. Those that grow best in acidic pH values are called acidophiles. Others‚ yet‚ grow best in alkaline pH values and are called alkaliphiles. In this lab‚ each group was assigned an organism‚ which was then used to inoculate 6 different pH levels. Materials and Methods: Followed lab procedure 29‚ “pH and
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