class average‚ there is evidence that osmosis did occur in the bags. The largest change in mass was in the 1.0M sucrose bag the mass went from 12g initially to 14.2g‚ this gained 2.2g‚ an 18.3% change in mass for the group data over the duration of the experiment. The 0.2M bag went from 10.2g to 10.9g a 6.9% change in mass; the 0.4M bag went from 12.1g to 12.2g .83% change in mass; the 0.8M bag went from 10.9g to 12.2g and an 11.9% change in mass. During osmosis water diffuses‚ going from an area
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Rate of Osmosis Investigation Lab Title: A simple heading referring to your investigation Abstract: Write this section last! It is a brief paragraph or 2 which outlines the purpose‚ the method‚ the pattern of results and the conclusion you reached. It is an overall snapshot of the whole investigation. Introduction: Purpose: Biological Background: All living organisms are made of cells which are surrounded by a membrane. The cell membrane has many functions but the
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Osmosis Lab Report Hypothesis: Osmosis will occur when there is an uneven distribution of solute in a solvent. The higher the solute in solvent‚ then there will be a higher rate of osmosis through the diffusion gradient forming a hypertonic or hypotonic solution. Solvent with equal or no solute forms an isotonic solution. Materials: Distilled water‚ sucrose‚ dialysis tubing‚ string‚ 250 ml beaker. Procedure: To demonstrate and isotonic solution we needed 3 inches of dialysis tubing. We
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Conflict in A Raisin in the Sun In the play A Raisin in the Sun‚ the playwright Lorraine Hansberry depicts the life of an impoverished African American family living on the south side of Chicago. The Youngers‚ living in a small apartment and having dreams larger than the world in which the live‚ often use verbal abuse as a way to vent their problems. Many times‚ this verbal abuse leads to unnecessary conflict within the family. The most frequently depicted conflict is that between Walter and
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A Raisin in the Sun Essay Assignment Rough Draft In Lorraine Hansberry’s play “A Raisin in the Sun‚” Walter Younger is an idealist who failed to see reality and how things actually work out. Walter is in his 30s yet he still lives with his mother‚ who holds the family together. He isn’t capable of caring for a family and making the right decisions. He has a dream of owning a liquor store that his family opposes to yet he still tried to obtain it. Walter is a man of flaws because of his
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Osmosis is a passive movement of water through a selectively permeable membrane moves from an area of higher concentration to an area of lower concentration. In this lab‚ we can determine the direction of diffusion of small molecules by measuring the diffusion of small molecules through dialysis tubing. This tubing acts as a selectively permeable membrane‚ and allow to pass larger molecules slowly. Introduction: Cells have kinetic energy and it causes the molecules of the cell to move around
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NAME: Donna Ha TITLE: Measuring the Rate of Osmosis Using “De-shelled” Chicken Eggs INTRODUCTION: In order to fully understand the concept of this experiment‚ one must first be introduced to diffusion. Diffusion is a spontaneous process by which molecule particles move from one area that is highly concentrated to another area in which its concentration is lower. Cells contain fluids and are surrounded by fluids; in order for a cell to function it is required to be in a balanced state. The
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A Raisin in the Sun debuted on Broadway in 1959. Critics have consistently mentioned the honesty presented throughout the play. The actors in all the remakes of this play have all had been claimed to be “vivid” “eloquent” and “heroic”. The set was accurate to what they know about the real life situation Hansberry lived in. In reviewing its Broadway debut‚ critic Brooks Atkinson praised the way A Raisin in the Sun was played out and who played it. Claiming‚ “ A Raisin in the Sun has vigor as well
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poetry during his high school years. In some of his poems he uses two devices to point out comparisons which are metaphors and similes. In Harlem he uses personal experiences to compare something else such a using the word “or” after the first comparison. He uses five similes in Harlem: “like a raisin in the sun‚ like as sore‚ does it stink like rotten meat‚ like a syrupy sweet‚ like a heavy load”. Then he uses a metaphor: “or does it explode”. All of these comparisons make me image the things he is comparing
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Potato Osmosis and Diffusion Lab Report Emily Cocq Research Question: Will there be a difference in the experimented potato cores after being subjected to high concentrations of sugar? Introduction: Water can move through protein channels in cell membrane/cell walls. The water will move due to the water potential of the cells. If there is a greater concentration of solutes (chemicals) inside the cell than outside the cell and the chemicals can not move‚ then water will respond by moving
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