page 1 Experiment Results Predict Question: Predict Question 1: The molecular weight of urea is 60.07. Do you think urea will diffuse through the 20 MWCO membrane? Your answer : c. No‚ not at all. Predict Question 2: Recall that glucose is a monosaccharide‚ albumin is a protein with 607 amino acids‚ and the average molecular weight of a single amino acid is 135 g/mole. Which of the following will be able to diffuse through the 200 MWCO membrane? Your answer : c. glucose only Stop &
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Topic: Osmosis Materials: Potato cylinders‚ 20 percent sodium chloride solution‚ three test-tubes‚ test-tube rack‚ scalpel blade‚ Gel ink pen‚ syringe-10cm^3‚ Plastic ruler with mm‚ tile‚ forceps filter paper‚ Masking tape. Method: 1) Three test-tubes‚ A‚ B and C were labeled and initials of experimenters were applied with the date: January 29‚ 2013. 2) A syringe was used to put 10cm^3 of water in tube A and 5cm^3 in tube B along with 5cm^ 20 percent sodium chloride solution and 10cm^3 20 percent
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Osmosis Lab Report The essential focus of the experiment was to acquire data for the mass change resulting from osmosis in order to determine the carbohydrate solution of the carrot cells. The carrots were a vegetable used within the experiment with a carbohydrate solution around .5 M. The hypothesis is if there are carrots in different carbohydrate solutions then there will be a percent change in mass. The carrots have large vacuoles that hold water‚ this allows the mass to increase when the hypertonic
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Osmosis Trial experiment Aim: Our aim in this experiment is to find out which vegetable absorbs the most liquid over a given time due to osmosis. Chosen Apparatus: we will need to use: six test tubes; a test tube rack; an apple; a potato; a cork borer; a measuring cylinder; sugar solution; scales to measure in milligrams; a ruler; a knife; and a pair of tweezers. Apparatus Why we chose it Advantages Alternative equipment apple Its an absorbent fruit and is similar to a potato It
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Osmosis Experiment Subject: Professor Egg-avier Duration: 3 weeks (Oct 2nd – Oct 16th) Week 1 On October 2nd my group was giving a raw egg (weighing 58.8 grams) and placed it into a clear mason jar with 200mL of vinegar. The ph levels of our vinegar equaled a 2 which tells us that vinegar is a fairly acidic liquid. Once submerged in the vinegar‚ little bubbles began to appear around the egg’s shell. We believed this to be carbon dioxide escaping from the shell. We left our egg to sit in the
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perform the experiment‚ first the calorimeter was filled with 100 mL of water using a graduated cylinder‚ and the temperature of the water was found and recorded. Next‚ the beaker was filled 3/4 full with water and placed on the stand of the ringstand above a gently burning flame from the Bunsen Burner. Then‚ the mass of the test tube and wax was found and recorded‚ and the tube was placed in the beaker. After the wax in the tube melted‚ the tube was placed in the calorimeter‚ using a wire gauze
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Experiment 1 Background Diffusion is a process‚ in relation to the spontaneous movement of molecules from an area of high concentration‚ to an area of low concentration down a concentration gradient. It is a type of passive transport method‚ that requires no cellular energy (ATP). This movement occurs‚ until a state of equilibrium has been established on both sides of the membrane. The diffusion of molecules happens at cellular level‚ through a cell membrane via the pores. The cell membrane
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Osmosis Experiment Diana Arrowood Grand Canyon University BIO-100L Biology Concepts September 16‚ 2011 Osmosis Experiment Directions Use the information below to complete the Osmosis Experiment. Materials 1 fresh baking potato Water Salt Four small containers (i.e.‚ drinking cups or clear glasses) A metric ruler Methods and Procedure 1) Place 1 cup (236 ml) of water in each of the 4 containers. In 2 of the containers‚ add 1 tablespoon (14.8 ml) of table salt and mix well until
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Digital Balance used to measure the mass of the potato strip before and after osmosis. Time should be kept constant when the potato strip is put into the solution Hypothesis: The mass of the potato strip will increase in water and dilute concentrations of sucrose depending on the concentration within the cell. When the concentration of the sucrose solution outside the cells of the potato strip will be less‚ the mass of the solution will increase as water molecules from outside will diffuse into
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this experiment‚ one of the big is osmosis‚ and how it had the overall impact in this excitement a little on osmosis. Osmosis takes place when two solutions of different concentrations are separated by a semi-permeable membrane in which the solvent can pass through but not the solute. In our experiment‚ we used a sucrose solution that will be a hypotonic concentration of solute. This tells us that the solution has a lower concentration of water than does the cells. Therefore‚ due to osmosis‚ the
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