Analysis of Carcinus maenas ingestion rates Materials and methods Part 1 - Control experiment Two mussels (mytilus edulis) were opened and the mussels inside cut into 4 pieces, producing 8 pieces of roughly equal size in total. A balance was then tared with a weighing boat placed on it. Each piece of mussel flesh was placed individually and in turn into the weighing boat to be weighed. The pieces were then placed into a plastic bucket half filled with filtered seawater. The weight, time of weighing
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The purpose of the experiment was to see how abrasion works and how it affects rocks and minerals with the use of sugar cubes. I measured the mass of all 5 sugar cubes together then placed it in a jar with a lid on and shook it 20 times, as I was shaking the jar my lab partner recorded the mass that was taking with the number of times I shake the jar. After which we drew the shape of the sugar cubes when it was poured out on a paper, then we calculated the percent change. This procedure was repeated
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Polyimides are a synthetic polymeric resin of a class resistant to high temperatures, wear, and corrosion, used primarily as a coating or film on a substrate substance. Polyimides are also polymers that usually consist of aromatic rings coupled by imide linkages-that is, linkages in which two carbonyl groups are attached to the same nitrogen atom. Polyimides cover the whole range of high performance polymers. They are a sophisticated family of materials which have applications in highly technical
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The experience of the egg drop project was one that will help you realize that not every way that you try will work, and just because you fail once doesn't mean you can't try again. I believe my egg broke possibly because when I was testing mine I was working with a larger egg. So when it came to the drop it wasn't supported by the walls as much as it should have been. I believe also because the straws on the bottom didn't really reach the egg since it was a smaller egg than what I was practicing
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Action Notes Pipelines, Power & Utilities Recommendation: Risk: 12-Month Target Price: 12-Month Total Return: Market Data (C$) Current Price 52-Wk Range Mkt Cap (f.d.)($mm) Dividend per Share Dividend Yield Avg. Daily Trading Vol. (3mths) $31.58 $25.51-$32.87 $24,000.8 $0.98 3.1% 1,487,005 December 760.0 750.0 63.7% $10.36 13.4% September 12, 2011 Equity Research 1 of 4 HOLD Unchanged LOW C$33.00 Unchanged 7.6% Linda Ezergailis, P.Eng. 416 983 7784 linda.ezergailis@tdsecurities.com
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different states. Td bank is amongst the countries top 10 banks. The bank took its name through a merger with commerce bank and Banknorth. The company operates under Toronto Dominion Bank in Ontario Canada. Banknorth also added a sister company, Td Ameritrade formed under TD Waterhouse. One of the main things I like about Td Bank is its convenience to its costumers. Working for Td Bank, they take pride in their high customer service ratings. The have employees attend TDU a university to train employees
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molar concentration of O2 in the Dead Sea. 3. Suppose we make a solution by dissolving 42.5 g of I2 in 1.50 mol of CCl4. a. What is the molality of this solution? b. Suppose we wanted to use our 42.5 g of I2 to make a 0.500 m solution. What volume of CCl4 would we need? The density of CCl4 is 1.589 g/mL. 4. We dissolve 200.0 g of NaCl in 684.5 g of water and find that the density of the solution is 1.15 g/mL. Calculate: a. The % by mass of NaCl
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Solutions to Grooming Teens for Adulthood Reasoning and Problem Solving CST 1 November 30, 2009 To solve a problem one must often dive beneath the surface of the reflected obvious to reveal the rest of the issue hidden in the depths below. In Task one for this course the question of what is the best way to prepare teen’s for a successful adulthood has been addressed through several viewpoints and approaches. Just as there are multiple approaches in rearing children, there does
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most dilute solution of one of the pesticides. Work your way up to the top concentration of the pesticide, then thoroughly wash the spray top with distilled water. Then you should use the spray top to dispense control solution in order to clean the inside of the spray. Now you can move onto the most dilute solution of the 2nd pesticide and work your way up to the top concentration. When dispensing pesticide solutions it is essential that you use a new clean pipette tip for each solution to avoid
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AND MOLAR MASS: AIM The aim of the experiment is to become familiar with the colligative properties and to use them to determine the molar mass of a substance. THEORY A solution consists primarily of solvent and therefore, most of the solution’s properties reflect the solute’s properties. The physical properties that the solution and solute do not share are known as colligative properties and they depend solely on the solute concentration. Some of these properties include vapor pressure lowering
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