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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Julia Kent is an American USA Today and New York Times bestselling author best known for writing edgy contemporary romantic comedy and boundary pushing contemporary adult books. Since starting out in 2013‚ she has attained much success selling over 1.5 million novels with 16 titles making the USA Today bestseller list and four on the New York Times bestsellers. Some of her most popular novels include The Shopping series‚ The Obedient Series‚ The Random Series‚ and The Her Billionaires Series. The
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Brooke Johnson Mrs. Wardell English II 18 May 2012 French Food and Traditions Creamy cheeses‚ steaming bread‚ the scent of olive oil and pepper in the air‚ and warm sugar dusted pastries that melt on your tongue are just some of the things that describe the food in France. In many ways‚ understanding the food is understanding France itself. The French take pride in their cooking. In France‚ it is said the way you prepare and serve your meal reflects upon you and your family. France has set 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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of the McDonald’s book‚ be aware that a copy of the book is reserved at the main library of the University of Hong Kong for you to borrow for short period of time. Answers provided are for your reference only. It is complied directly from the solution manual provided by the author. If you identify any error‚ please let me know. Chapter 1: 1.3‚ 1.4‚ 1.11 Chapter 2: 2.5‚ 2.9‚ 2.13‚ 2.16 Chapter 3: 3.1‚ 3.3‚ 3.10‚ 3.12‚ 3.14‚ 3.15‚ 3.18 Chapter 4: 4.1‚ 4.4‚ 4.5‚ 4.15‚ 4.17 Chapter 5: 5.4‚ 5
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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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Rachel Bohnenberger Professor Van Doorn ENVS 150-002 30 January 2015 Critique Two In the first video‚ The Story of Solutions‚ the main focus was to shift attention from making more and more for the economy to making the economy better. It was described in the video that in order to make the economy better‚ we need to focus our attention on sustainability. One example given was banning plastic bags. Two methods were given on how to accomplish said task—the old method and the new method. The old
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Week 4 Individual Assignment: Synergetic Solutions Susana Pena COM 530 Mark Busby Univ. of Phoenix February 5‚ 2013 * Describe at least three internal and external forces of change for Synergetic Solutions. * * * The external forces of change for Synergetic Solutions include technology‚ economic shocks‚ and competition. Technology is the one force that has caused for companies in the technology business to stay innovated and have skills be up to date with the needs
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it is fun starting a new way of life. Life without the constant objections from your parents and annoyance from your little sibling is one of the many advantages you gain from college. Cancelled classes‚ late night parties and deleterious amounts of food make college enjoyable; however‚ this can lead to weight gain. "Freshman 15" is not a myth and although you may not be unfortunate enough to gain 15 pounds‚ you might gain some weight. To shun gaining weight‚ freshmen should eat healthy‚ avoid alcohol
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Problems and Solutions 1 CHAPTER 1—Problems 1.1 Problems on Bonds Exercise 1.1 On 12/04/01‚ consider a fixed-coupon bond whose features are the following: • face value: $1‚000 coupon rate: 8% • coupon frequency: semiannual • maturity: 05/06/04 • What are the future cash flows delivered by this bond? Solution 1.1 1. The coupon cash flow is equal to $40 8% × $1‚000 = $40 2 It is delivered on the following future dates: 05/06/02‚ 11/06/02‚ 05/06/03‚ 11/06/03 and 05/06/04. The redemption value
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