Essay on Leonard Bernstien A Legendary Composer - 1377 Words

Leonard Bernstein is seen as one of the greatest composers in America. Bernstein composed great music, conducted great music, and also preformed great music as a pianist. Bernstein is probably most known for his film score in the production West Side Story. According to The New York Times, he was one of the most prodigiously talented and successful musicians in American history.† Being born and educated in the United States, Bernstein was the first American to obtain worldwide acclaim. He is also cited in the Encyclopedia of World Biography, that â€Å"his special gift of bridging the gap between the concert hall and the world of Broadway made him one of the most glamorous musical figures of his day.† Bernstein was born in August 25, 1918,†¦show more content†¦She said that â€Å"His brain was on fire with curiosity. And what he loved most was to communicate his excitement to others.† Bernstein was greatly involved at Harvard. He was an avid member of the Harvard Glee Club. After graduating from Harvard, Bernstein continued to study music in Philadelphia at Curtis Institute of Music. At this school, Bernstein studied orchestration. According to New World Encyclopedia, Bernstein received the only ‘A’ that Fritz Reiner ever gave out in his conducting class. While at Curtis, Bernstein studied with, and was influenced by, great musicians and pianists, such as Heinrich Gebhard and Isabella Vengerova. After studying at Curtis, Bernstein attended the Berkshire Music Festival that following summer. That summer he met Serge Koussevitzky. He became the protà ©gà © of Koussevitzky. Bernstein blossomed from his educational successes and later, in 1943, caught his big break, according to PBS. Bernstein was signed on as the assistant conductor of the New York Philharmonic Orchestra. Bernstein received this honor by the recommendation of Koussevitzky, according to the Gale Encyclopedia of Biography. One night on short notice, he had to fill in for Bruno Walter. PBS said â€Å"Bernstein found himself on the cover of The New York Times — an instant celebrity. Within two years he was named the director of the New York City Symphony.† The orchestra was

Calorimetry Prelab Free Essays

Experiment 12 Calorimetry and Heat of Reactions ____________________________________________________________________________________________________________ PERFORMANCE GOALS: 1. To learn how to use of a calorimeter 2. To learn how to collect and manipulate data in the computer 3. We will write a custom essay sample on Calorimetry Prelab or any similar topic only for you Order Now To calculate the calorimeter constant 4. To use Hess’ Law to find the heat or formation of magnesium oxide CHEMICAL OVERVIEW: †¢Enthalphy: (? H) : when chemical or physical changes occur at a constant pressure. †¢Calorimeter: is an instrument with insulating walls where the reaction happens. Eq. 1: q rxn = -qsurrounding Heat of capacity of the calorimeter: â€Å"Cp† must be calculated at the beginning of every calorimeter experiment in Joules/  °C Heat Capacity of the Calorimeter: The calorimeter constant is easily found by adding a fixed amount of hot water to a known amount of cold water and the change in temp for each recorded, due to the Law of Energy Conservation the amount of heat released by the hot water should be equal to the amount of heat absorbed by the cold water: Eq. 2 q released( Hot Water) = -q absorbed (Cold Water) If there is a discrepancy between these two values use the following equation: Eq. 3q= m x spht x ? T Where spht is the specific heat of the substance in J/ g °C ?T is the temperature change in  °C andm is the mass in grams Mass of Cold Water|51. 20 g| Initial temperature of cold water|20. 3  °C| Mass of hot water|49. 82 g| Initial temp of hot water|98. 2  °C| Final temp of the mixture|58. 3  °C| Eq. 4qHot = mHot x sphtWater x ? THot qHot = (4. 184 J/  °C-g)(49. 82g)(58. 3  °C-98. 2  °C) = -8317 J Eq. 5qCold = mCold x sphtWater x ? TCold qCold = (4. 184 J/  °C-g)(51. 20g)(58. 3  °C-20. 3  °C) = 8142 J 8317-8142 = 175 joules Cp = ( 175 J ) / (58.  °C – 20. 3  °C) Cp = 4. 6 J/  °C HEAT OF REACTIONS: q released = -q absorbed Eq. 6 q released = – (q solution + q calorimeter ) Eq. 7 qSolution = mSolution x sphtWater x ? TSolution sphtsolution= 4. 184 J/ g  °C Eq. 8q calorimeter= Cp x ? T Eq. 9 q reaction = ? Hreaction Hess’s Law Hess’s Law states that the enthalpy of a reaction is independent of the steps tha t it takes to get from reactants to products because enthalpy of reaction is a state function. State Function- depends on initial and final state but not on the path taken ?Temperature ?Volume ?Pressure ?Energy Mg (s) + 1/2 O2 (g) – MgO ( s) PRE-LAB ASSIGNMENT 1. Predict the product, balance the questions and write the net ionic equations for the reactions: a. Mg (s) + HCI (aq) — b. MgO (s) + HC: (aq) — 2. Write the reaction that represents the enthalpy of formation ( ? Hfor ) of water. 3. Use the table of the thermodynamic data in your text book to calculate the ? H for each of the three reactions REMEMBER Eq. 10 ( ? H  °rxn = ? ( n? H  °for )prod – ? ( n? H  °for )react 1) 2) 3) 4. Use Hess’s Law combining the three molecular equations to calculate the ? Hrxn for the reaction of the formation of MgO. PROCEDURE A. CALIBRATION OF THERMISTOR 1. 2. 3. 4. 5. 6. 7. B. DETERMINATION OF THE HEAT CAPACITY OF THE CALORIMETER 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. C. REACTION OF MgO AND HCI 1. 2. 3. 4. 5. 6. 7. 8. 9. D. REACTION OF Mg AND HCI 1. 2. 3. 4. 5. 6. 7. E. DATA AND CALCULATIONS A. Calorimeter Constant Mass of Styrofoam cup with lid + spin bar (g)|| Mass of cup with lid + spin bar + 50mL of room temp. water (g)|| Initial Temp of Room Temp. Water (  °C )|| Initial Temp of Hot Water(  °C )|| Total mass at the end (g)|| Calculated Heat released by Hot Water (J) (Eq. 4)|| Calculated Heat absorbed by R. T Water (J) Eq. 5)|| Calculated Heat absorbed by Calorimeter (J)|| Calculated Heat Capacity of the Calorimeter, Cp (J/ °C) (Eq. 8) || B. Heat of Reaction of MgO Mass of weighing boat (g)|| Mass of weighing boat + Magnesium oxide (g)|| Mass of Magnesium oxide (g)|| Mass of Styrofoam cup with lid + spin bar (g)|| Mass or Styrofoam cup with lid, spin bar (g) + HCI|| Calculated Mass of HCI (g)|| Total Mass of solution at the end|| Calculated Mass of MgO (g) (using total mass of solution)|| Initial Temperature of Solution ( °C) (before MgO was added)|| Final. Temp of solution ( °C) (after MgO was added)|| Calculated Heat absorbed by solution (J) (Eq. 7)|| Calculated Heat absorbed by calorimeter (J) (Eq. 8)|| Calculated Total heat absorbed|| Calculated Total heat released by the solution (Eq. 6)|| Calculated Moles of MgO|| Calculated Moles of HCI|| Heat released per Mole of MgO|| Molar Heat Reaction (kJ/mol)|| C. Reaction of Mg with HCI Mass of weighing boat (g)|| Mass of weighing boat + Magnesium (g)|| Mass of Magnesium (g)|| Mass of Styrofoam cup with lid + spin bar (g)|| Mass or Styrofoam cup with lid, spin bar (g) + HCI|| Calculated Mass of HCI (g)|| Total Mass of solution at the end|| Calculated Mass of Mg (g) (using the final mass of solution)|| Initial Temperature of Solution ( °C) (before Mg was added)|| Final. Temp of solution ( °C) (after Mg was added)|| Calculated Heat absorbed by solution (J) (Eq. 7)|| Calculated Heat absorbed by calorimeter (J) (Eq. 8)|| Calculated Total heat absorbed|| Calculated Total heat released by the solution (Eq. 6)|| Calculated Moles of Mg|| Calculated Moles of HCI|| Heat released per Mole of Mg|| How to cite Calorimetry Prelab, Essay examples

Neverfail Computing Samples for Students â€Myassignmenthelp.Com

Questions: 1. What are the qualities of Neverfail that attract venture capitalists?2. Examine the valuation of Neverfail: Assume that Pacific Ridge Capital expects to realize an IRR of at least 40 percent per year over five years on this round of investment. What does this imply for the future sales and income of Neverfail? Bear in mind that there will possibly be another round of investment in about 12 months. 3. Appraise the conditions on the term-sheet from the perspective of both Pacific Ridge Capital and Neverfail.4. Why does Neverfail insist on signing the deal before the new-year? Answers: 1. Neverfail Computings search for the venture capital started with presentation of six minute at the venture capital conference of American Electronics Association. In that presentation, Tim gave an overview of Neverfail computing, the computer industrys future as well as how they were positioned for prospering (Drover et al. 2014). Leo stated that they would invest early money in the company at the first meeting. The company has also conveyed a casual and a relaxed negotiating attitude. The reason is, according to Tim, they were not interested in the raising capital. The partners of Neverfail computing conceded as the serious negotiations started that they required venture capital. In reality, the urgency was growing ass the company has faced a cash crunch. On the other hand, sales were not being able to meet the fourth-quarter objectives (Aggarwal et al. 2014). Neverfail has finished fourth quarter 30 % under the plan. Therefore, the organization required money to finance continue s and deals the rapid growth of it. George was approached for a loan of short-term goal. Therefore, the straight forward nature of the company management as well as the cool and calm negotiation nature of the organization has attracted the venture capital the most. 2. According to the valuation if the IRR of investment is about 40 % that is the rate that implements the present value of the cash flows of investment equivalent to zero (DeFusco et al. 2015). Therefore, it can be said that the project is desirable. Thus, it can easily be said that the future sales as well as the income of the company would be impact in a positive manner. However, it cannot be said that the IRR of investment would be same for another 12 months investment after the five years. Thus, the future sales and the income of the company would vary depending on the change in the IRR rate of investment for those 12 months. 3. All of the deal points on the term sheet were not appropriate from the perspective of both Neverfail Technology and Pacific Ridge. Two deal points were not liked by Neverfail Technology (Jackson et al. 2012). These are regarding a 20% accruing annual dividend and an On-demand IPO registration rights. From the Pacific Ridge perspective, if Pacific Ridge cannot be able to conclude the deal at the weekend there was no way that the deal could be signed by the New Year. 4. According to the dilemma, described by Ted, even if a deal is negotiated by Pacific Ridge that weekend, little time for due diligence investigation of Pacific Ridge as well as for drafting the deal would be there (Bierman Smidt, 2012). There was no way that the contract can be signed by the New Year timeline, if they did not make any conclusion the deal at that weekend. Therefore, due to this dilemma, Neverfail insists Pacific Ridge on signing the deal before New Year. References Aggarwal, R., Kryscynski, D., Singh, H. (2015). Evaluating Venture Technical Competence in Venture Capitalist Investment Decisions.Management Science,61(11), 2685-2706. Bierman Jr, H., Smidt, S. (2012).The capital budgeting decision: economic analysis of investment projects. Routledge. DeFusco, R. A., McLeavey, D. W., Pinto, J., Runkle, D. E., Anson, M. J. (2015).Quantitative investment analysis. John Wiley Sons. Drover, W., Wood, M. S., Payne, G. T. (2014). The effects of perceived control on venture capitalist investment decisions: A configurational perspective.Entrepreneurship Theory and Practice,38(4), 833-861. Guerra, M. L., Magni, C. A., Stefanini, L. (2014). Interval and fuzzy Average Internal Rate of Return for investment appraisal.Fuzzy Sets and Systems,257, 217-241. Jackson, W.E., Bates, T. and Bradford, W.D., 2012. Does venture capitalist activism improve investment performance?.Journal of Business Venturing,27(3), pp.342-354.