Chemistry Textbook Notes: Solutions Chapters 13 & 14: LH 1. Define soluble‚ solution‚ solvent‚ solute‚ suspension‚ colloid (p.395398) Soluble- capable of being dissolved solvent0 the dissolving medium in a solution solute- the substance dissolved in the solution suspension- a mixture in which the particles in the solvent are so large that they settle out unless the mixture is constantly stirred or agitated colloid- a mixture consisting of particles that are intermediate in size between
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1. Define the following terms: a. aqueous solution- a solution in water b. colloid mixture of large molecules that will not settle or join with the other substance it is in c. concentration ratio of mass or volume of solute to mass or volume of solvent d. heterogeneous a mixture is made up by two or more different substance which are (mixed) together but are not combined e. homogenous mixture mixture that is uniform throughout f. Henry’s Law An expression for calculating the solubility
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Purpose The purpose of this experiment is to find out the molarity of each solution while finding out how many grams of sodium chloride we have. Materials 1. Wire gauze 2. tongs 3. Burner 4. balance 5. Matches 6. hot hands 7. ring stand 8. ring clamp 9. graduated cylinder 10. evaporating dish Procedure Steps: 1. Mass the evaporating dish 2. Record how many mL of solution you add into the evaporating dish then mass them together. 3. Set the evap. dish on the
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Abstract This laboratory involved utilizing equipment to dilute a sugar water solution. It also created solutions containing varying levels of concentrations and densities. Equations were used to figure the molecular weight of the sugar‚ and the number of moles of sugar in the volumetric flask. There was also an equation to figure the Molarity‚ as well. As a result of the experiment‚ I now have a better understanding of the density of a concentration‚ and what Molarity is . Observations Data
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1. Solution is a homogeneous mixture composed of only one phase. In such a mixture‚ a solute is a substance dissolved in another substance‚ known as a solvent. Suspension is a heterogeneous mixture in which the particles are large enough to be seen by a microscope or the unaided eye and eventually‚ they settle out of the mixture. A colloid is a substance microscopically dispersed throughout another substance. Unlike colloids‚ suspensions will eventually settle. The suspended particles are visible
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Lab Background information: A hypertonic solution is a concentration that is higher than the solution. A Hypotonic solution is a concentration that is lower than the solution. An isotonic solution is a concentration and solution that is the same amount. Hypothesis question: What will happen if you put a potato in hypertonic solution? What will happen if you put a potato in hypotonic solution? What will happen if you put a potato in isotonic solution? Hypothesis statement: If you put sugar
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Riding the plus-size wave In the past several years‚ Hollywood and advertising media defined a stereotypical image of women as poreless‚ hipless‚ silkenhaired ‚ size 0‚ perfect women. However‚ Lane Bryant‚ a plus-size retailer and a daughter company of Charming Shoppes‚Inc.‚ tried to change this perception and improve self-concept ‚ self-esteem ‚ and self-consciousness of plus-size women. As a result‚ it does work. Currently Lane Bryant generates 74% of Charming Shoppes’ revenue from plus-size clothing
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Definition of terms Plus-size is defined differently in different regions. This essay would focus on plus-sizes in the apparel industry. A plus-size model‚ according to apparel search.com‚ is one who wears a dress size 14 or higher in North America sizing‚ 14 or higher in Australian sizing‚ and 16 or higher in U.K. sizing. Even though there are specific sizes stated to identify a plus-size. In the apparel industry now‚ there seems to be no accurate definition of a plus-size‚ it varies accordingly
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Investigation of Factors Affect Osmosis in Potatoes Aim The aim of the following experiment was to investigate the effect of varying the concentration of sucrose solution on osmosis in a potato. Preliminary Experiments One preliminary experiment was done before the main experiment. From the preliminary‚ we were trying to find out how osmosis actually occurred in potatoes‚ and gave us a vague idea on what the main experiment would be like. This preliminary will aid my prediction
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industry should not feel obligated to use plus sized models in their campaigns. Do you agree? Women these days are constantly bombarded with advertisements and campaigns telling them what they should wear‚ what they should eat and how they should portray themselves. It has become a race to try and achieve a size zero look because women feel as if it has become the new norm. That is why‚ I believe the fashion industry should be obliged to use plus size model. A plus size model is a model who is a US size
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