insoluble. 5. The limit of solubility of a solid in a solvent is influenced by the pressure‚ temperature and the nature of the solvent. 6. In the lab for combination 13‚ I think that these discrepancies occurred‚ because the aqueous solutions were compromised. 7. One could test the limits of solubility for each
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that will determine what concentration of solute is isotonic with the specimen cells. (Design) Procedure: You will be provided with the following materials: Potato‚ potato corer‚ scalpel‚ forceps‚ electronic balance 10 % salt solution‚ distilled water‚ 50 mL beakers‚ graduated cylinder‚ paper towel You must design a procedure that will enable you to determine the concentration of salt that is isotonic with your specimen. You may use only the materials above and you must
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important how permeable the tube is but also the rate at which osmosis is occurring. Water moves across the selectively permeable membrane of the dialysis tubing much easier than sucrose sugar does. The water moved to reach equilibrium between the solutions. Sucrose must be too large a molecule to pass through the membrane quickly. That was visible based on the observations for the first tube at 1.Unfortunately our observations can not be too accurate since we ran out of 40% sucrose to do any observations
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10/23/2012 Case Study 1 (Too much of a good thing)) The definition of OSMOSIS is the movement of a solvent through a membrane separating two solutions of different concentrations. The solvent from the side of weaker concentration usually moves to the side of the stronger concentration‚ diluting it‚ until the concentrations of the solutions are equal on both sides of the membrane. Michael made numerous mistakes in this story that caused the corn fields to die. The first mistake Michael made
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Questions: 1. One mole of a compound A‚ with vapor pressure 400mmHg at 50oC‚ mixed with 3 moles of compound B‚ with vapor pressure 480mmHg at 50oC to form a homogeneous solution. What is the vapor pressure of mixture at 50oC? XA =moles of A\total No. of moles XA =1\4 XB=3\4 Ptotal=PAoXA+PBoXB =400*1\4 + 480*3\4 = 460mmHg 2. Why should a distilling flask be filled not less than 1\3 filled or more than 2\3 full? This is to allow the liquid being heated room to expand as it turns
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given temperature. Solubility is defined as the ability of a substance to dissolve in another substance. Solutions are mixtures containing a solute (substance being dissolved) and a solvent (material that dissolves another substance). Solutes and solvents can be solids‚ liquids‚ or gases. The most common solutions‚ however‚ have liquid solvents‚ particularly water. There are many solutions that students encounter regularly‚ such as apple juice‚ soda‚ carbonated water‚ or salt water‚ in which the
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1- An office building contains 27 floors and has 37 offices on each floor. How many offices are in the building? Solution: Total number of offices is 27 * 37 =999 2- A particular brand of shirt comes in 12 colors‚ has a male version and a female version‚ andcomes in three sizes for each sex. How many different types of this shirt are made? Solution: Using product rule‚ we have 12×2×3 = 72 different types of this shirt. 3. Use a tree diagram to find the number of bit strings of length four
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pressure be generated if you had 9 mM glucose on one side of a 200 MWCO membrane and 9 mM NaCl on the other side? If so‚ which solution was generating the pressure? No‚ because both glucose and NaCl are diffusible with a 200 MWCO membrane. Would pressure be generated if you had 9 mM albumin on one side of a 200 MWCO membrane and 9 mM NaCl on the other side? If so‚ which solution was generating the pressure? Yes‚ the albumin would generate the pressure‚ because it does not diffuse. ACTIVITY 5: Filtration
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reaching out to almost the entire world population with more than 250 brands in 130 countries. The product we have chosen is "Pert Plus"‚ which is according to P&G is in its declining stage. We made our hypothesis as per to the information provided by the company. In order to gather information; first we found out the causes of decline and consumer behavior towards "Pert Plus". After that we collected primary and secondary data‚ through various sources of information. Then we made the research design
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out in order to do the testing and monitoring of acrylamide in potato chips on the market in Indonesia. In this research‚ the method development was done by using cation exchange solid phase extraction‚ repeated extraction with 10 mM formic acid solution and precipitation at low temperature by centrifugation. The utilise of C-18 reversed-phase columns were slightly more polar performed to achieve a better separation of acrylamide. Eluent system of liquid chromatography used a time programme gradient
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