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    Potato Osmosis Lab

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    Lab Report Purpose: Osmosis and diffusion through potato core in different concentration (viable) : The concentration of solution in a solution will affect the movement of water across potato cell membrane Material: Potato core Sucrose solution (0.2‚0.4‚0.6‚0.8‚1.0) Electronic Balane Test tube and rack Scalpel Plastic Weighing tray Cork Borers Method: Day 1 use you cork borers to bore 6 vertical hole on your potato. remove the potato cylinders from

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    experiment is to investigate the osmosis effect in potato cores while they are submerged in different concentrations of sucrose solution. Osmosis will take place while the potatoes are fully submerged in the sucrose solution. Apparatus ľ Scalpel (1) ľ Tile (1) ľ Pr. Tweezers (1) ľ 250ml Beakers (2) ľ 100ml Water (Per Beaker) ľ 100ml Sucrose Solution o 0.2M o 0.4M o 0.6M o 0.8M o 1.0M ľ Measuring Cylinders (2) ľ Ruler (1) ľ Potato Cores (30) ľ Stop Clock

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    Osmosis

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    The process of osmosis doesn’t stop till both solutions are equal in and out of the cell membrane. Osmotic pressure is needed to stop the process of osmosis. “The rate in which osmosis occurs depends on the temperature of the solution‚ the concentration of the solute‚ and the electrical charge of the solute.” Osmosis occurs in the large and small intestines. After you chew your food it goes

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    Abstract This report investigates the absorbance of methylene blue and carmine red using a spectrophotometer to determine the absorption spectra of both solutions. The concentration of the unknown solution of methylene blue was found to be 1.07 x 10-5 M by using the molar extinction coefficient‚ with absorption of 0.547. It was also found that the results concluded confirmed beer’s law with an R2 value of 0.9989. Introduction Spectrophotometry is the quantitative measurement of the absorbance

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    How Osmosis Works

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    Question 1: How does Osmosis works It refers to the movement of water molecules from an area of high-level water concentration‚ that is‚ a dilute solution‚ to an area of low-level water concentration‚ that is‚ a strong solution through a semi-permeable membrane.  (Passmyexams.co.uk‚ 2015) Actually‚ water moves in a bi-directional manner with the aim of leveling up the concentration. However‚ a high number of water molecules move from the fresh water towards the salty water. The outcome

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    density lab

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    Lab # 4 Determination of Density of Liquids Name: Lab Partner: Period: 3 Date Completed: 9/23/2014 Date Submitted: 9/29/2014 Data TABLE 4 DENSITY OF SALT SOLUTIONS-INDIVIDUAL GROUP’S RESULTS Concentration (%) Mass (g) Volume (mL) Density (g/mL) 0 9.9522 10.00 0.9952 4 10.1291 10.00 1.013 8 10.5233 10.00 1.052 12 10.7487 10.00 1.075 16 11.0297 10.00 1.103 Unknown # 10.6234 10.00 1.062 Calculations 1. Show all density

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    and potassium thiocyanate‚ KSCN. They react to produce the blood-red complex [Fe(SCN)]2+. Fe3+ + SCN- ( [Fe(SCN)]2+ The equilibrium constant expression may be expressed as: K = [pic] You will prepare a series of standard solutions that contain known concentrations of [Fe(SCN)]2+ and will determine their absorbances at 447 nanometers. The concentrations and absorbance values will be used to construct a calibration graph for [Fe(SCN)]2+. In the second part of the experiment

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    Osmosis Lab Report

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    was -9.002%. If the were soaked in a 0.6M sucrose solution instead of water‚ then the bags that held 0.0M sucrose‚ 0.2M sucrose‚ and 0.4M sucrose‚ would have the sucrose diffuse into the bag given that the bags are permeable to sucrose. Diffusion occurs when the solution goes from a high concentration to a low concentration. If the bags are below the 0.6M sucrose solution‚ then they will have a lower concentration of sucrose‚ thus the 0.6M solution would enter those bags. The 0.6M sucrose bag would

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    Corruption

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    various quarters for a budget that has quadrupled in the last seven years to a government panting to meet deadlines‚ not to mention public inconvenience. While the Commonwealth Games haven’t even started‚ many are already looking forward to their end. The country no longer seems to be enjoying its status as the next Games venue‚ rather‚ worrying more about how the expenditure will burden a common man’s pocket. So‚ is hosting the event a waste of national money? Does India really need mega sports

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    Bio Poem

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    movement of water molecules. When observed‚ there are two types to a solution: solute and solvent. The solute is a dissolved substance and the solvent is when the solute is dissolved. When you have more than one solution‚ you compare them to see if they are hypotonic‚ hypertonic‚ or isotonic. Hypotonic is when the other solution in comparison to the solution you are looking at is less solute. Hypertonic is explained as when one solution is more

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