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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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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the hamburger patty in the burger they ordered. b. the wages of the employee who takes the customer’s order. c. the cost of heating and lighting the kitchen. d. the salary of the outlet’s manager. 6 Micro Computer Company has set up a toll-free telephone line for customer
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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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Harmantaj sahota sahot111 103776105 Professor Oriet 10 march‚ 2013 Inventing solutions “To invent u need a good imagination and a pile of junk.” –Thomas Edison Inventing solutions and inventions is familiar to us in science and engineering. We use the word ‘invention’ in creative endeavours such as mathematics‚ music‚ literature and sometimes in fine art too. In a broader context invention can be
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Refining Solutions Paper How do you protect yourself from becoming a victim of identity theft? A credit card statement with gas charges originating in Louisiana was the first sign of trouble. The owner of the card had not traveled to Louisiana during the dates of the charges‚ which indicated there was a problem. The feeling of anxiety and frustration took over because security was in place to prevent fraud. There are many ways thieves can access one’s personal information. According to CIPPIC
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Refining Solutions Paper How can I express myself and get the individual group to openly receive and understand the message that is being sent? That was the original problem. Some solutions would be to try and calm down before speaking to someone making sure I speak clearly and be confident when I am speaking to others not to proud but just know where I stand. Have a theme and focus on it. In certain settings I would have to speak to a specific type of audience. Although with spontaneous conversations
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