5 Solution Preparation 1. Why should the solutions be prepared with 0.10M HCl used as solvent? a. What will happen to Fe3+ if the solution was not prepared using 0.10M HCl? b. Give the balanced equation for the 1st hydrolysis of Fe3+. c. What is the color of the product of 1st hydrolysis of Fe3+? d. What is the effect of the product of 1st hydrolysis to the absorbance of the solution? Determination of Analytical Wavelength 2. Why should the solution with
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FINA 200 JMSB - First Sample Final Exam Suggested Solution Section I: 26 Multiple Choice Questions (2 marks each – total of 52 marks) 1. b $15‚000 FV‚ 5 n‚ 4 i‚ COMP PMT = $2‚769 2. a 3. c 3 to 6 months 4. a 5. c 6. a 7. a 8. d 9. a 10. b 11. a 12. b 13. c 14. b 15. b 16. b 17. b 18. c 19. a 20. d 21. a 22. b 23. c 24. c 25. b 26. b Section II: 13 True/False (1 mark each – Total of 13 marks) 27. a 28. a 29. a 30. a 31. a 32. b 33. b 34. b 35. b 36. a 37. a 38. a 39. a Section
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Workshop Five-Ethical Solutions Paper Jackie Marshall June 19‚ 2013 Workshop Five-Ethical Solutions Paper The owner of a company reduced wages by 5% for all employees in 2010 due to the aftereffects of 9/11: an action that was necessary in order to save the company from financial ruin during a very turbulent economy. Since that time‚ no one within the organization has gotten a raise. However‚ the business has now stabilized‚ showing a net profit for the fourth quarter of 2011‚ all of
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BUFFER SOLUTIONS CONTENTS 1. Introductions. 2. Principles of buffering. 3. Applications a. Simple buffering agents. b. "Universal" buffer mixtures. c. Common buffer compounds used in biology. 4. Buffer capacity. 5. Calculating buffer pH a. Monoprotic acids. b. Polyprotic acids. 6. Biblography. INTRODUCTION A buffer is an aqueous
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A buffer solution can maintains a narrow range of pH even when strong acid are added. In our experiment‚ we can see water is not a buffer‚ water can undergo very big changes when small amounts of strong acid or strong bases are added. When the strong acid‚ 100µl HCl was added into the dd water‚ the pH value changed from 7.38 to 5.83 which mean the dd water has turn into acid. The same phenomenon occurs while strong base‚ 100µl NaOH was added into the dd water. The pH value changed from 7.07 to 9
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Introduction World Science and Technology founded by the Standard Curriculum for Primary‚ KSSR is being taught in primary one. It is approach that consists of combination of elements science‚ design and technology‚ and information and Communication Technology. World of science and technology aims to foster interest in science and technology‚ develop creativity and innovation students through experience and investigation to master science and technology‚ skills thinking scientific values. The
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1.John is twice as old as his friend Peter. Peter is 5 years older than Alice. In 5 years‚ John will be three times as old as Alice. How old is Peter now? 2. John’s father is 5 times older than John and John is twice as old as his sister Alice. In two years time‚ the sum of their ages will be 58. How old is John now? 3. Joan is 3 times as old as her sister. In 3 yeas ‚ shee will be two years more than twice the age her sister will be then. What are their ages? 4. Kevin is 4 years older than
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Solutions for Homelessness This great nation of awesome power and abundant resources is losing the battle against homelessness. The casualties can be seen on the street corners of every city in American holding an "I will work for food" sign. Homeless shelters and rescue missions are at full capacity. There is no room at the inn for the nation’s indigent. Anyone who has studied this issue understands that homelessness is a complex problem. Communities continue to struggle with this socio-economic
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Laurie Halse Anderson writes children’s and young adult novels. She wrote the novel Wintergirls and it was published in 2009. The main character is Lia Overbrook‚ and she wants to forgive herself and move on from her best friend’s death. She tries almost everything she can to forget that her friend died because she wasn’t there to help her‚ but others won’t let her forget. The other students at school keep reminding her that it’s her fault and makes sure she knows she should’ve answered her phone
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Electrolytic Solutions Solutions are sometimes grouped according to their ability to conduct electricity. Substances whose solutions conduct electricity are called electrolytes and those that do not conduct electricity are called nonelectrolytes. Also electrolytes can be strong or weak. Under strong electrolytes we have NaCl and CaCl2 which are ionic compounds‚ HCI‚ HNO3‚ HBr and H2SO4 are under acids and NaOH‚ KOH‚ and LiOH are under bases. Weak electrolytes are ionic compounds and slightly
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