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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world today at our global civilization there are many problems that leap to our attention and everyone has a vested interest‚ one such example is food. Science has been tinkering with nature for the past one-hundred years trying to come up with solutions to help fight famine‚ and as a result‚ man made products have created ever more problems. The easiest way in which an individual or individuals can create change is to effect change in their local communities‚ so others can see an image of what 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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population grows by about 3000.” (www.overpopulation.org‚ 2013). This shows that humans give huge amounts of ignorance concerning the overpopulation issue. Overpopulation causes negative impacts such as on the population’s health‚ education‚ unemployment and towards the world’s global environment. The first problem that overpopulation causes is health of the population. Overpopulation means more children in one family‚ and when each family has more than 2 children‚ this means greater amount of food is
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Econ 1023 (FR05B) Assignment One Due January 23‚ 2013 1. Classify each of the following items as included or not included in GDP. Give an explanation for those that you judge as not included. State when applicable‚ the expenditure category in which each good is included. a. The purchase of copy paper by PepsiCo‚ which is used by the company staff. Answer: This case is not included in GDP‚ because it is an intermediate goods. b. The purchase of an electronic handheld organizer
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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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Developing Recession with Rising Unemployment The economy as we know it today is developing a recession with rising unemployment. The US economy has experienced a decrease in real output for one quarter and leading indicators point to continued contraction in the current quarter. The unemployment rate last month was 5.8% and is expected to rise above 6% in the current quarter. With strict discipline‚ we can utilize fiscal or monetary policy tools in order to bring this nation back to an equilibrium
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A. Normative Minimum wage in my opinion does not create unemployment among young and unskilled workers. Most unskilled workers enter in the workforce earning minimum wage. Young people are eager to start working in most markets. They usually understand that they have to start out at a low rate of pay or minimum wage. B. Positive Usually when a product decreases in price more people want to have it. Take for example cell phones. When they initially hit the market they were basically
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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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