Lacy Taylor iLab‚ Week #5 UNKNOWN ACID AND BASE TITRATION Introduction The pH‚ or the concentration of the hydrogen plus ion [H+]‚ is one of the most critical parameters in predicting if a system will corrode‚ or determining why a system is corroding. PH is defined as the negative log base 10 of the hydrogen plus ion concentration in the units of moles per litre. Procedure pH MEASUREMENT OF UNKNOWN SOLUTIONS Obtain the following apparatus from the equipment menu: 100 mL beaker
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Charles Jacquier Lab 4 – Energy Sources and Alternative Energy SCI 207 Professor Selhorst Experiment 1: The Effects of Coal Mining Table 1: pH of Water Samples Water Sample Initial pH Final pH (24-48 hours) Pyrite 5 5 Activated Carbon 5 7 Water 5 5 POST LAB QUESTIONS 1. Develop hypotheses predicting the effect of pyrite and coal on the acidity of water? a. Pyrite hypothesis = If pyrite is added to water‚ it will make the water more acidic. b. Coal hypothesis = If the
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Request for Proposal Felix J Gonzalez ENG221 April 18‚ 2013 Suzanne Watkins Request for Proposal Southwire Company Request for proposal OPS Initiative Felix J Gonzalez OPS Manager‚ Southwire One Southwire Drive Carrollton‚ GA 30119 felixg@southwire.com 559-779-8272 Organizational Overview The Southwire Company was founded during 1950 by Roy Richards Sr. Roy launched the Southwire Company in an effort to provide his eighty five year old grandma and his area with electrical
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Statistics Unit 9 Lincoln College Online Staci Morris Statistics Unit 9 Page 581-584 #4‚ 5‚ 7‚ 15‚ and 18 4.) Describe the hypotheses for a two way ANOVA test. Two way ANOVA Test will have three null hypotheses. One hypothesis will represent the independent variable‚ and its effects on the second hypothesis which is the dependent variable (main effect). The third null hypothesis is the interaction effect on both independent variables on the dependent variable
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EXAMINATION 12 April 2005 (am) Subject CT3 Probability and Mathematical Statistics Core Technical Time allowed: Three hours INSTRUCTIONS TO THE CANDIDATE 1. Enter all the candidate and examination details as requested on the front of your answer booklet. 2. You must not start writing your answers in the booklet until instructed to do so by the supervisor. 3. Mark allocations are shown in brackets. 4. Attempt all 13 questions‚ beginning your answer to each question on
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2‚ 3‚ 4} Please see attached. 7.3.6a) For A = {a‚ b‚ c‚ d‚ e}‚ the Hasse diagram for the poset (A‚ R) is shown in Fig. 7.23. determine the relation matrix for R. (a) (b) (c) (d) (e) (a) 1 1 1 1 1 (b) 0 1 0 1 1 M(R) = (c) 0 0 1 1 1 (d) 0 0 0 1 1 (e) 0 0 0 0 1 7.4.1a) Determine whether each of the following collections of sets is a partition for the given set A. If the collection is not a partition‚ explain why it fails to be. A = {1‚ 2‚ 3‚ 4‚ 5‚ 6‚ 7‚ 8}; A1 = {4‚ 5‚ 6}‚
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STATISTICS - Lab #6 Statistical Concepts: Data Simulation Discrete Probability Distribution Confidence Intervals Calculations for a set of variables Open the class survey results that were entered into the MINITAB worksheet. We want to calculate the mean for the 10 rolls of the die for each student in the class. Label the column next to die10 in the Worksheet with the word mean. Pull up Calc > Row Statistics and select the radio-button corresponding to Mean. For Input variables:
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STATISTICS 1. If the arithmetic mean of 7‚9‚11‚13‚ x‚ 21 is 13‚find the value of x. 2. The mean of 24 numbers is 35. If 3 is added to each number‚ what will be new mean.? 3. The mean of 20 numbers is 43. If 6 is substracted from each of the numbers‚what will be new mean? 4. The mean of 15 numbers is 27. If each numbers is multiplied by 4‚what will be new mean? 5. The mean weight of 6 boys in a group is 48 kg. The individual weights of five of them are 51kg‚ 45kg‚ 49kg‚ 46kg
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DeVry University DeVry University was opened in Chicago by Dr. Herman DeVry in 1931. It was called DeForest Training School to prepare students for technical work in electronics‚ motion pictures‚ radio and later‚ television. It was in Chicago. In the 1940’s during WWII‚ DeVry University was selected by United States to educate Army Air Corps instructors on electronic devices. It was one of the first schools to be approved under the original G.I. Bill. In 1953 DeForest Training School became DeVry
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Week 4 Assignment BUS 308 Statistics for Managers January 28‚ 2013 9.13) Recall that “very satisfied” customers give XYZ-Box video game system a ratting at least 42. Suppose that the manufacturer of XYZ-Box wishes to use the random sample of 65 satisfaction ratings to provide evidence supporting the claim that the mean composite satisfaction rating for the XYZ-Box exceeds 42. a. Letting u represent the mean composite satisfaction rating for the XYZ-Box‚ set up the null hypothesis H0 and the
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