The Effect of Concentration on Absorbance Background Information The purpose of the “Determining Solution ‘Concentration’ Using A Spectrophotometer” lab was to use a spectrophotometer to find the relationship of concentration and absorbance obeying the Beer-Lambert law‚ which states concentration and absorbance are directly related‚ to then further determine the concentration of three unknown solutions. With the assumption that the solutions obey the Beer-Lambert law it is predicted that as concentration
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tadpoles in three local ponds. This experiment was used to test a class hypothesis that a specific pond would contain a higher density of tadpoles based on its location‚ availability of cover‚ sunlight availability and other factors. We hypothesized that Pond 4 would be highest in density due to the characteristics listed above. Materials and Methods: The Mark-Recapture method was used to gather data for each pond. Groups of five – six students collected tadpoles from each pond. Three students collected
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Mount Pleasant The parents are the most important cornerstone in the rearing of a child. They are the ones who lay the foundation for how the child will behave in the future. All parents wants their child to become a respectable and resourceful adult in society in the future. Therefore‚ the parents must strike a balance between being strict and soft‚ because there may be consequences if you are too much of one than the other. If you are too rigorous‚ the child may in the future be confined‚ or
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Osmosis Lab Research Question: In this lab‚ our goal was to look at the effects of different sucrose concentrations on osmosis in potatoes. Our research question was “How do the sugar levels affect the rate of osmosis in potatoes?”. Background Information: Solutions consist of solutes dissolved in a solvent. In all living organisms there are many different types of solutes including salts and sugars. The major solvent is water. There are different concentrations of solutes in various regions
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THE EFFECT OF THE WATER CONCENTRATION GRADIENT ON THE RATE OF OSMOSIS Investigation Folio: Summative Stage 1 Biology: SEMESTER 1 2014 MARCIA SHAW - 151003X INTRODUCTION Diffusion: is when something spreads more widely from a higher concentration gradient to a lower concentration gradient. Diffusion is the process from which molecules‚ atoms or ions mingle together and move from an area of high concentration to an area of low concentration as a result to their kinetic energy. for example
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Bacterial Transformation Lab Report Backround: The plasmid pGLO contains an antibiotic-resistance gene‚ ampR‚ and the GFP gene is regulated by the control region of the ara operon. Ampicillin is an antibiotic that kills E. coli‚ so if E. coli‚ so if E. coli cells contain the ampicillin-resistance gene‚ the cells can survive exposure to ampicillin since the ampicillin-resistance gene encodes an enzyme that inactivates the antibiotic. Thus‚ transformed E. coli cells containing ampicillin-resistance
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Joshua Berkebile 8-26-10 1st period Density Lab The purpose of this lab was to find the mass‚ the length‚ the width and the height of 4 different cubes so we could calculate the volume and density of them. We also had to find the density of irregular shapes by dropping them into a graduated cylinder than subtracting the starting water volume by the ending water volume. Density is how much mass is in a certain volume of matter. Volume is the amount of room that an object
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about Mount Kilauea . The volcano Mount Kilauea is located in the state of Hawaii and it can be found on Hawaii ’s biggest island which is Mauna Loa. In the Hawaiian language the name Kilauea means “spewing” or “much spreading” because of the mountain’s constant outpouring of lava (Wikipedia). Mount Kilauea has been expelling lava on a consistent basis since January of 1983. With this in mind‚ it makes Mount Kilauea the most active volcano on the planet. Also because of Mount Kilauea
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100 ml of artificial pond water. There were 8 cups in each treatment‚ high density had 100 thali‚ medium density had 50 thali‚ and low density had 10 thali. The cups were randomly placed on a tray. The thali were counted and then rearranged every Monday‚ Wednesday‚ Friday for 7 total changes. Water levels were topped off each visit. The cups were rotated middle to sides and front row to back row. To dispose of the Duckweed‚ we poured them down the drain with plenty of water. A two-way ANOVA was run
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Mr. Mihordea Motion of Atoms and Molecules lab summary In this lab the standard heat of combustion of magnesium was calculated by using the calorimeter. Also‚ the point of combustion of magnesium was to see how much heat would be released from fireworks such as sparklers. The concept of this lab was to find the difference in temperature from the beginning to end of combustion of magnesium and calculate the standard heat
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