Lab Transshipment Problem (100 Points)

Problem 1 Transshipment Problem

Courtesy example from Spreadsheet Modeling and Decision Analysis By Cliff Ragsdale)

The Bavarian Motor Company (BMC) manufactures expensive luxury cars in Hamburg, Germany and exports cars to sell in the United States. The exported cars are shipped from Hamburg to ports in Newark, New Jersey, and Jacksonville, Florida. From these ports, the cars are transported by rail or truck to distributors located in Boston, Massachusetts; Columbus, Ohio; Atlanta, Georgia; Richmond, Virginia; and Mobile, Alabama. Figure 1 shows the possible shipping routes available to the company along with the transportation cost for shipping each car along the indicated path.

Currently, 200 cars are available at the port in Newark, NJ and 300 are available in Jacksonville, FL. The numbers of cars needed by the distributors in Boston, Columbus, Atlanta, Richmond, and Mobile are 100, 60, 170, 80, and 70, respectively. BMC wants to determine the least costly way of transporting cars from the ports in Newark and Jacksonville to the cities where are needed.

Problem 2 Maximum Flow Problem

Consider the north-south interstate highway system passing through Cincinnati, Ohio. The north-south vehicle flow reaches a level of 15,000 vehicles per hour at peak times. Due to a summer highway maintenance program, which calls a for the temporary closing of lanes and lower speed limits, a network alternative routes through Cincinnati has been proposed by a transportation planner committee. The alternative routes include other highways as well as city streets.

Because of differences in speed limits and traffic patterns, flow capacities vary, depending on the particular streets and roads used. The proposed network with arc flow capacities is shown in Figure 2.

The direction of flow for each arc is indicated, and the arc capacity is shown next to each arc. Note that most of the streets are one-way. However, a two-way street can be found between nodes 2 and 3 and between node 5 and 6. In both cases, the capacity is the same in each direction.

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Laboratory measurements always contain some error. Depending on the type of equipment used, that error can be quite substantial. One way to validate our density value from Part B is to do a completely different experiment to measure of the density of the block, then compare the two measurements

cube mass in air is 50.0 g

cube mass immersed in water is 5.6g

water temperature is 20 degree Celsius

density of water is .99821

previous calculation of density of the block immersed 40% was 1.16 g/cm^3

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Step 1: Balance the equation.

C) Based

on the following data for the titration between potassium hydroxide (KOH) and

hydrochloric acid (HCl), use the 6 steps of stoichiometry to determine the

molarity of KOH. Show all working.

Step 1: Balance the equation.

A) Based

on the following data for the titration between sodium hydroxide (NaOH) and

sulfuric acid (H2SO4), use the 6 steps of stoichiometry to determine the

molarity of H2SO4. Show all working.

Step 1: Balance the equation.

B) Based

on the following data for the titration between sodium hydroxide (NaOH) and and

sulfuric acid (H2SO4), use the 6 steps of stoichiometry to determine the

molarity of H2SO4. Show all working.

Step 1: Balance the equation.

C) Based

on the following data for the titration between potassium hydroxide (KOH) and

sulfuric acid (H2SO4), use the 6 steps of stoichiometry to determine the

molarity of KOH. Show all working.

Step 1: Balance the equation.

LABORATORY ASSIGNMENT 1You only have one attempt at this quiz so be sure to read all information here prior toclicking the start button. Once you start the canvas quiz you will have 120 min in which tofinalise and submit all 5 questions including the file calculation uploads. The time limitshould be adequate given all possible calculation questions are given here so you are able toprepare extensively prior to starting the quiz. It has been set to ensure you complete theassignment in one sitting rather than viewing the quiz and then logging out of canvas priorto answering all questions and thus submitting an incomplete attempt. Remember, you onlyhave one attempt at this quiz.The calculation questions (Q3, Q4 and Q5) will require the upload of a file containing yourown working of calculations. This file will preferably be a scanned pdf file, or alternatively aclear jpg image, of your legible hand written calculations. It is your responsibility to providea file that can be read by the demonstrators who will be marking your work. The mark willbe calculated as per the rubric below. Question 1 – Use of a pipette (1 mark)You will be asked whether a series of statements are true or false with respect to thecorrect techniques for using a pipette to accurately deliver a known volume. Question 2 – Use of a burette (1 mark)You will be asked whether a series of statements are true or false with respect to thecorrect techniques for using a burette to accurately record the titrant volume. Question 3 – Titration data and error calculations (1 mark)You will be randomly allocated one of the following sets of titration data from which todetermine an average titre and associated % relative error using the formula:Range% Relative error=x 100 % .MeanA) Use the following burette readings to calculate an average titre volume in mL and a %relative error for this value. Show all working.Burette Readings (mL)Final 21.40 42.65 21.20 42.35 Initial 0.00 21.40 0.00 21.20 B) Use the following burette readings to calculate an average titre volume in mL and a %relative error for this value. Show all working.Burette Readings (mL)Final 23.90 45.65 22.70 45.35 Initial 0.05 23.90 0.00 22.70 C) Use the following burette readings to calculate an average titre volume in mL and a %relative error for this value. Show all working.Burette Readings (mL)Final 22.10 44.05 22.00 43.85 Initial 0.00 22.10 0.10 22.00 Question 4 – Titration calculation (1 mark)You will be randomly allocated one of the following titration calculation questions for youto complete.A) Based on the following data for the titration between sodium hydroxide (NaOH) andhydrochloric acid (HCl), use the 6 steps of stoichiometry to determine the molarity of HCl.Show all working.Volume of HCl sample (in flask) = 25.00 mLBurette Readings Rough (mL) Molarity of NaOH titrant = 0.09900 MAccurate Burette Readings (mL) Final 21.40 42.65 21.20 42.35 Initial 0.00 21.40 0.00 21.20 B) Based on the following data for the titration between sodium hydroxide (NaOH) andacetic acid (CH 3COOH), use the 6 steps of stoichiometry to determine the molarity of aceticacid. Show all working.Volume of CH 3COOH sample (in flask) = 20.00 mLBurette Readings Rough (mL) Molarity of NaOH titrant = 0.1050 M Accurate Burette Readings (mL) Final 23.90 45.65 22.70 45.35 Initial 0.05 23.90 0.00 22.70 C) Based on the following data for the titration between potassium hydroxide (KOH) andhydrochloric acid (HCl), use the 6 steps of stoichiometry to determine the molarity of KOH.Show all working.Volume of KOH sample (in flask) = 20.00 mLBurette Readings Rough (mL) Molarity of HCl titrant = 0.09870 MAccurate Burette Readings (mL) Final 22.10 44.05 22.00 43.85 Initial 0.00 22.10 0.10 22.00 Question 5 – Titration calculation (1 mark)You will be randomly allocated one of the following titration calculation questions for youto complete.A) Based on the following data for the titration between sodium hydroxide (NaOH) andsulfuric acid (H2SO4), use the 6 steps of stoichiometry to determine the molarity of2SOH 4.Show all working.Volume of H 2SO4 sample (in flask) = 25.00 mLBurette Readings Rough (mL) Molarity of NaOH titrant = 0.1980 MAccurate Burette Readings (mL) Final 21.40 42.65 21.20 42.35 Initial 0.00 21.40 0.00 21.20 B) Based on the following data for the titration between sodium hydroxide (NaOH) and andsulfuric acid (H2SO4), use the 6 steps of stoichiometry to determine the molarity of2SOH 4.Show all working.Volume of H 2SO4 sample (in flask) = 20.00 mLBurette Readings Rough (mL) Molarity of NaOH titrant = 0.1050 MAccurate Burette Readings (mL) Final 23.90 45.65 22.70 45.35 Initial 0.05 23.90 0.00 22.70 C) Based on the following data for the titration between potassium hydroxide (KOH) andsulfuric acid (H2SO4), use the 6 steps of stoichiometry to determine the molarity of KOH.Show all working.Volume of KOH sample (in flask) = 20.00 mLBurette Readings Rough (mL) Molarity of H2SO4 titrant = 0.04870 MAccurate Burette Readings (mL) Final 22.10 44.05 22.00 43.85 Initial 0.00 22.10 0.10 22.00

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Labor EstimationSenior management is scheduled to review the labor estimate for developing software for iX. The project manager requested an analysis of past performance. The analyst compared the actual labor with the initial estimate for the 30 most recent projects. The results, X= actual – initial estimate ( in thousands of hours), are as follows:

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Labor economics essay about dynamic Labour Supply (Retirement):

The government has recently become concerned about gender gap in retirement(pension) wealth. Why do households’ life-cycle labour supply decisions often result in men having more and women having less retirement wealth? What factors might lead to gender differences in savings for retirement. What, if any, public policies options should the government consider to boost the retirement wealth of women?

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