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Seperating Mixture and Compounds Calculate and record the fo

Seperating Mixture and Compounds Calculate and record the following (in grams): a mass of the empty evaporating dish (g) 76.000g b mass of the evaporating dish plus the powder mixture sample (g) 86.000g c mass of the sample, b minus a (g) 10g d mass of the evaporating dish and the remaining contents after sublimation (g) 84.780g e Subtract (d) from (b) to obtain the mass of NH4Cl in the sample (g) 1.22g and then…. Calculate and record the following (in grams): a mass of an empty beaker 85.000g b mass of the beaker with the SiO2 after decanting 91.160g c mass of the SiO2 (b minus a) 6.16g and then…. Calculate and record the following (in grams): a mass of the beaker with NaCl after boiling away water (g) b87.620g measured mass of NaCl after boiling away water (a minus the mass of the beaker from Experiment 2) (g) ??? and then…. Determine the amount of sodium chloride (NaCl) in the original mixture indirectly by adding the masses of ammonium chloride (experiment 1 e) and sand (experiment 2 c) together and subtracting the sum from the initial sample mass of 10 g. ????? Calculate the percent difference between the results from the two methods from the following equation: % difference = |(measured mass) – (mass by subtraction)| / (mass by subtraction) * 100% ????? Based on your experimental results, which is the preferred method of separation? ????? What is the mass percent of each component in your mixture? To determine the mass percent, divide the mass of the component by the mass of the total 10g sample and multiply that result by 100. a % NH4Cl ?? b % SiO2 ?? c % NaCl ??

Unit 21. This assignment consists of traveling to the sites

Unit 21. This assignment consists of traveling to the sites listed above and writing a brief paragraph about your visit to that site, and then answering some questions after you have looked over the chapters in the text and in resources for Unit 2. http://www.cellsalive.com/toc.htm#microbiol2. Assume you are looking under the microscope at a Gram-stained slide of an open wound, and you see large red rod shaped cells, and smaller blue violet round cells. What is your explanation for the red and blue cells?3. Document Preview: Unit 21. This assignment consists of traveling to the sites listed above and writing a brief paragraph about your visit to that site, and then answering some questions after you have looked over the chapters in the text and in resources for Unit 2. http://www.cellsalive.com/toc.htm#microbiol2. Assume you are looking under the microscope at a Gram-stained slide of an open wound, and you see large red rod shaped cells, and smaller blue violet round cells. What is your explanation for the red and blue cells?3. Explain the gram stain, and what does the gram stain tell you about the anatomical differences in cells? What information is gained from this staining technique, and how could that information affect an ill patient?Here is the Link to “Cells Alive! http://www.cellsalive.com/toc.htm#microbiol You will need to look at : Cell Biology; and then at “How big is a” …..; and “Cell models” as well as “dividing bacteria”, and “bacterial motility” There is a good discussion here on prokaryotes, and eukaryotes. You will see references to comparisons between prokaryotes and eukaryotes, it is important to distinguish between the two, and it will be easier to do once we look closely at the information in chapter 5.1. A functional cell could be built with a single chromosome, cytoplasm, a cell membrane, and ribosomes. Why are these four components absolutely necessary to the functional cell? If these structures are all a cell needs, why do most cells have many more structures? 2. Your 6th grader has read an article at school about life on other planets, and your child volunteered you to talk to the class about prokaryotes and your opinion on whether there can be microbial life on other planets. In light of what you have learned from this chapter, develop an intelligent response for your to present to your childs class. (yes, this is an actual question, and base your response on the reading from this chapter and the web site and any other choices you wish to use!)3. Why… Attachments: unit-2-and-3-….docx

Assume you are the manager of Abba Cable Company, which prov

Assume you are the manager of Abba Cable Company, which provides commercial communication services to the town of Canyon Lake, Texas. Because of licensing restrictions in the market, only your company and two others (Babba and Cabba) are allowed to operate in this market. The three companies decide to form a cartel and divide the market shares such that each company will provide services that will maximize its profits. The licensing restrictions allow each company to sell as much as it wants at a price ceiling of $2,200. You have the following output and MC data for each company: Output MC ($) Q Abba Babba Cabba 1,000 2,500 2,600 2,700 2,000 2,400 2,300 2,500 3,000 2,200 2,100 2,300 4,000 2,000 2,000 2,100 5,000 2,100 2,200 2,200 6,000 2,200 2,500 2,300 Calculate the industry output and market share at the current price of $2,200, assuming the prices are stable and unlikely to change. Assume the current prices in the market are challenged by the regulatory agency, resulting in a new maximum price of $2,000. How will this change the industry output and market share for each company? Is there any incentive for any company to cheat under either of the conditions in tasks a and b? Why or why not?

A river flows with a uniform velocity v. A person in a motor

A river flows with a uniform velocity v. A person in a motorboat travels 1.15km upstream, at which time she passes a log floating by. Always with the same throttle setting, the boater continues to travel upstream for another 50.6min and then returns downstream to her starting point, which she reaches just as the same log does. Calculate the velocity of the river.

KC Distance Learning Lab: Catalysts Objectives Evaluate dif

KC Distance Learning Lab: Catalysts Objectives Evaluate different catalysts to determine which is the best Illustrate the difference between using a heterogeneous and homogeneous catalyst Demonstrate how varying the quantities of a catalyst can affect the reaction Introduction If youve ever used hydrogen peroxide (H2O2) on a wound, youve most likely noticed the immediate reaction that causes bubbles to form. Document Preview: KC Distance Learning Lab: Catalysts Objectives Evaluate different catalysts to determine which is the best Illustrate the difference between using a heterogeneous and homogeneous catalyst Demonstrate how varying the quantities of a catalyst can affect the reaction Introduction If youve ever used hydrogen peroxide (H2O2) on a wound, youve most likely noticed the immediate reaction that causes bubbles to form. This reaction is accelerated by what is known as a catalyst in this case an enzyme in blood that accelerates the decomposition of the hydrogen peroxide into oxygen (O2) gas and water (H2O). Scientists use many different types of catalysts to control the speed of a reaction. In addition to speeding up a chemical reaction, another beneficial feature of a catalyst is that it is not consumed during the reaction in other words it does not form or change the products of the reaction. Enzymes are biological catalysts and are necessary for many of the reactions that take place in your body. Chemical reactions require a small amount of energy, known as activation energy, to begin the reaction. If a chemist cannot change the other conditions of the reaction (temperature, concentration, etc.) to increase the reaction rate, then the chemist may select a catalyst that will lower the activation energy and speed up the reaction. There are many different types of catalysts and frequently there are several catalysts that will work for a given reaction. Selecting the correct Figure 1: One day soon, homeowners everywhere may be protected from deadly carbon monoxide fumes, thanks to a device, invented at NASA Langley Research Center, which converts deadly carbon monoxide to carbon dioxide. The chemical catalysts -tin oxide and platinum -are applied to a surface. Air passing over the surface reacts with the catalysts, transforming carbon monoxide into carbon dioxide. The device requires no energy for operation, doesn’t need to be plugged in, has no moving parts, and… Attachments: Lab-Catalysts….pdf

Kose, Inc., has a target debt-equity ratio of 0.74. Its WACC

Kose, Inc., has a target debt-equity ratio of 0.74. Its WACC is 11 percent, and the tax rate is 32 percent. If Koses cost of equity is 14 percent, what is its pretax cost of debt? If instead you know that the aftertax cost of debt is 6 percent, what is the cost of equity?

Below find the trial balance for Nybrostrand Company. Prepar

Below find the trial balance for Nybrostrand Company. Prepare an income statement and balance sheet in good format. After you have completed the two statements comment on the success of the company. Support your answer with information from the financial statements you just prepared. Nybrostrand Company 31-Dec-11 Trial Balance (accounts in alphabetical order) Debit Credit Accounts payable $ 78,000 Accounts receivable $ 36,500 Cash 16,700 Common stock 10,000 Depreciation expense 24,350 Cost of goods sold 317,000 Equipment (net of depreciation) 395,000 Insurance 1,400 Inventory 34,000 Long-term debt 127,000 Marketing 4,500 Paid-in capital 50,000 Property taxes 16,900 Rent 28,000 Retained earnings ? Revenues 586,000 Salaries 78,500 Utilities 6,700 Total 959,550 851,000 The submission should be 2 to 4 pages and need to include answers to all the questions listed above. Show computations, discuss the results and include references in APA format. We are using the same company as in the first module. However, you need to consider some additional information. One client had indicated that they were interested in purchasing $42,500 worth of products, so the bookkeeper recorded the transaction. However, the client has not actually committed to the purchase. The bookkeeper may have made a mistake when computing cost of good sold. She included total production costs for 2011 and did not adjust ending inventory for the $42,500 worth of units left at the end of the year. The amount of ending inventory was determined using a physical count. Nybrostrand Company 31-Dec-11 Trial Balance (accounts in alphabetical order) Debit Credit Accounts payable 78,000 Accounts receivable 36,500 Cash 16,700 Common stock 10,000 Depreciation expense 24,350 Cost of goods sold 317,000 Equipment (net of depreciation) 395,000 Insurance 1,400 Inventory 34,000 Long-term debt 127,000 Marketing 4,500 Paid-in capital 50,000 Property taxes 16,900 Rent 28,000 Retained earnings ? Revenues 586,000 Salaries 78,500 Utilities 6,700 Total 959,550 851,000 Prepare an income statement for the company in good format. Always include the name of the company and the priod covered in the title. Don’t forget dollar signs where appropriate. You do not need to include the balance sheet. Consequently, you will not need all the accounts listed above. How does the income or loss compare to the original income statement? Explain the importance of the matching concept. The submission should be 2 to 4 pages and need to include answers to all the questions listed above. Show computations, discuss the results and include references in APA format.

7. You have a free ticket to see Lady Gaga in concert, this

7. You have a free ticket to see Lady Gaga in concert, this ticket having no resale value. Pink is performing on the same night, which is your second-best alternative. The Pink ticket costs $180, and on any given day you would be willing to pay up to $190 to see Pink. Assume there are no other costs of seeing either performer. a. Assuming you could not get the Pink ticket for free what is your (net) opportunity cost of your seeing Lady Gaga? Explain your answer.

Gallium Arsenide, GaAs, has gained widespread use in semicon

Gallium Arsenide, GaAs, has gained widespread use in semiconductor devices that convert light and electrical signals in fiber-optic communications systems. Gallium consists of 60% (69)Ga and 40 (71)Ga. Arsenic has only one naturally occuring isotope, (75)As. Gallium arsenide is a polymeric material, but its mass spectrum shows fragments with the formulas GaAs and Ga2As2. What would the distribution of peaks look like for these two fragments?

Questions are attached. Document Preview: International Econ

Questions are attached. Document Preview: International Economics HW 6 NYU, Spring 2012, Instructor: Tai Young-Taft Q.1 Consider the setup from Ch. 5 in our book. a. If there is a rise in relative price of cloth, how can both industries reduce relative use of L to K while employing their entire endowment of resources? Why is this the case? b. Articulate possible transfer of K and L between industries using Equa- tion (5A-1) from the book. Discuss each movement’s eect on price of the factor moving between industries. Do we have any reason to believe a particular trans- fer will increase or decrease factor costs more or less than any others? What, if anything, does this say about aggregate movements in market pricing of capital and labor? Q.2 (from Midterm Fall 2008) For this problem, consider the Heckscher-Ohlin model from our textbook. Let the two goods being produced be cloth, C, and food, F, and let the two factors of production be land, T, for `terra’, and la- bor, L. Let the relationship between relative price of cloth, PC=PF , for PC and PF equal to the price of cloth and food respectively, and the wage-rental ratio, w=r, for w and r equal to the cost of a unit of labor and land respectively, be given by: (PC=PF )2 = w=r. Furthermore, let the relationship between w=r and the land-labor ratio used in the production of cloth, TC=LC, be given by w=r = 2(TC=LC) and let the relationship between w=r and the land-labor ratio used in the production of food, TF =LF , be given by w=r = (3=2)(TF =LF ) ?? 2. a. If the relative price of cloth increases from 1 to 2, by how much does the land-labor ratio used in the production of cloth and food increase? Use a graph to illustrate this change, numerically indicating the changes. b. If the total labor supply in a particular country equals 100 hours and the total land supply equals 240 acres, how much land and labor is used in the production of each good after the increase in the relative price? Illustrate this with a correspondent graph. Q.3 Suppose that at current… Attachments: ie-hw-6.pdfie-hw-7.pdf