OSMOSIS LAB BACKGROUND INFORMATION. Dialysis tubing is being used to model a plasma membrane. Isotonic solutions are solutions that have the same concentration of solutes on both sides of the membrane. Hypertonic solutions are solutions that have more solute to the one with less solute. Hypotonic solution are solutions that have less solute to the one with more solute. RESEARCH QUESTION:which dialysis tubing will gain the distilled water and which one will loss its content
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relationship between pressure‚ volume and temperature of gas Date of experiment: 12/11/2008 Aim of experiment: The objective of this experiment is: 1. To study the relationship between pressure and volume of a gas at constant temperature. 2. To study the relationship between the volume and temperature of a gas at constant pressure. Principles involved: When gases are compared‚ their volumes‚ temperatures and pressure are always involved. The volume of a gas is identical to the volume of the
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Mesta Dr. Mbah December 6‚ 2012 Percent Yield of a Chemical Reaction Introduction Yield is the quantity of product in a chemical reaction‚ the theoretical yield of a reaction can be calculated using mole ratios from the balanced chemical reaction. The actual yield has to be obtained and measured in a laboratory. It may be usual to often find the actual yield to be less than the theoretical yield due to many different factors. This gives rise to the concept of percent yield. Sodium bicarbonate and
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Lab experiment 12 Percent of water in a hydrate The goal of Experiment 12 was to learn how to calculate the percent of water (by mass) in barium chloride and an unknown hydrate salt‚ as well as properly calculating the water of crystallization for the unknown hydrate salt. A hydrate salt is composed of anions (-) and cations (+) surrounded by a fixed number of water molecules‚ called water of crystallization. The hydrate decomposes upon heating and
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glucose on the percent change in mass of Gummy bears according to their respective colours In this experiment osmosis is the main process taking place. Osmosis is the diffusion of water molecules of a solvent which pass through a semi permeable layer and in most cases are due to a concentration gradient meaning that the water molecules travel from an area of low concentration to one of higher concentration. In this investigation‚ gummy bears of different colours (dependent variable) were placed in
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1. What importance have the following groups attached to salt? i. Romans: Romans considered “common salt” a right and used it for cooking in both plebian and patrician cuisine. Salt trade was a prominent way of making money and soldiers were often paid in salt. A tightly controlled monopoly on salt contributed to military funds. ii. Greek Philosophers: Plato describes salt as dear to the gods‚ and we can even see the importance attached to it in religious ceremonies‚ covenants‚ and magical charms
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Introduction: This experiment was used to examine the hypothesis that: Osmosis is dependent on the concentrations of the substances involved. Diffusion is the passage of solute molecules from an area of high concentration to an area of low concentration (Campbell & Reece‚ 2005). An example is ammonia diffusing throughout a room. A solute is one of two components in a chemical solution. The solute is the substance dissolved in the solution. The solvent‚ the other component‚ is any liquid in
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hsbsolutions7@gmail.com website:www.hsbsolutions.jimdo.com Ph: 9210846949 / 9717925135 Physics: Chapter 2 Solutions Last 15 years questions with solutions Topic: Strength of Solution Q.1Discuss the effect of Temperature on Solubility of solids in Solvent. AnsThe solubility of solid in a liquid solvent generally increases with increase in temperature of the solvent. Very rarely some neutral salts like KCl for some solids the solubility decreases with increase in temperature. temperature increases
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CHAPTER 9 DEDUCTIONS: EMPLOYEE AND SELF-EMPLOYED-RELATED EXPENSES SOLUTIONS TO PROBLEM MATERIALS | | | | |Status: | Q/P | |Question/ |Learning | | |Present |in Prior | |Problem |Objective |Topic
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Introduction For movie audiences of the 21st century‚ it is difficult to imagine that there were ever movies produced that the Congress of the United States would officially ban. Modern audiences have become accustomed to attitudes‚ language‚ and stories that are political‚ graphic‚ violent‚ and more than just a little bit avant garde. Obviously‚ such was not the case in the blacklisting days of the 1950s! “Salt of the Earth” violated every aspect of the white‚ middle-America‚ conservative mindset
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