Purpose: To find the percent of sugar by mass in chewing gum Hypothesis: The percentage of chewing gum that is sugar for bubble gum is 30%‚ 20% for juicy fruit and 25% for stride gum. Mass Of Juicy Fruit Mass Of Bubble Gum Mass of Juicy Fruit unchewed | 7.12g- 1.72 = 5.4 g | 5.80g- 1.72g = 4.08 | 4.52g- 1.72g = 2.80g | chewed | 3.00g- 1.72g= 1.28g | 2.24g-1.72g =0.52g | 2.86g-1.72g= 1.14g | Percent of Sugar | 3.00g x 100/ 5.4 = 55.5%
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Their Eyes Were Watching God Reading Questions Chapter One 1. Describe the contrast made for the “porch sitters” as workers and as storytellers (1-2). 2. How do the porch sitters respond to Janie’s return to town? • Men • Women 3. What is Janie’s impression of the porch sitters? Chapter Two 1. Janie has an identity problem until she is around six. Why? • racial identity problem • personal identity problem • social identity problem 2. On page 12‚
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is a technique where a solution of known concentration is used to determine the concentration of an unknown solution. Titrations are performed in chemistry‚ along with different manufacturing companies‚ to help determine the concentrations of acids and bases when they are unknown‚ when a neutralization reaction occurs. There are a couple important parts of a Titration that are imperative to successful results. Identifying the end point‚ which means to find the point in a titration at which a reaction
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Maribel Gatica‚ G00306874 Ryan/ENGL 1302/S15 July 26‚ 2015 The Function of Biblical Allusions about Faith and Morals in "A Good Man is Hard to Find" “A Good Man is Hard to Find” might just be a closer look at an individual human’s behavior‚ the moral codes they live by‚ tendencies and what is really taken into account as being genuinely good. Although it might seem like “The Misfit” might have been the evil person here‚ and the entire reference to the title of the short story‚ we can’t deny a closer
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Practical report: Determination of concentration using a standard curve Introduction Spectrophotometer is an instrument that confirms the measurement of specified wavelength of light that passes through medium. The measurement of light absorbance by a solution is also done with spectrophometer. Absorption spectrum Spectrometers are mainly and widely functional in identifying the components of solutions that helps determine the components’ concentrations. Compounds are experimentally identified
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For the 20%‚ the change in temperature was completed by around the 3rd-minute mark‚ so relatively fast before plateauing at 25 degrees. But the 3% took almost the whole 7 minutes to finish rising in temperature. So essentially‚ the higher the concentration of hydrogen peroxide‚ the faster the reaction will take place. Furthermore‚ the foam (water and oxygen produced by the potatoes catalase reacting with hydrogen peroxide) was a kind of indicator of how the reaction was going. It almost indirectly
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Although we cannot compare the horrors of the Nazi Concentration camps to the American "Relocation Centers"‚ there are many similarities. Both of the groups of victims were of the minorities‚ and these cultures were somewhat of an enemy to the leader of their country. These groups (the Japanese in America nearly two thirds of which were American citizens‚ and the Jews‚ Gypsies‚ the Poles‚ Slovaks‚ Communists and other enemies of the state in Germany and Poland‚ many of which had served the very countries
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EFFECT OF CONCENTRATION ON REACTION RATE The aim of this experiment is to find the effect of varying the concentration of iodide ions on the rate of reaction between hydrogen peroxide and an acidified solution of potassium iodide: H2O2(aq) + 2H+(aq) + 2I⁻ → 2H2O(l) + I2(aq) The course of this reaction can be followed by carrying it out in the presence of small quantities of starch and sodium thiosulfate solutions. As the iodine molecules are produced they immediately react with the thiosulfate
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investigation: The effect of solute concentration on osmosis in potatoes. Research question: What is the solute concentration of a potato? Hypothesis: Osmosis is the movement of water across the membrane from an area of high concentration to an area of low concentration. The osmosis continues until the solute concentrations are equal in both areas. In this experiment‚ we put pieces of potatoes into test tubes with sugar solutions of different concentrations and leave them there over night. It
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Effects of Molasses Concentration on Yeast Fermentation The purpose of this lab was to determine how yeast cells are affected by the concentration of a food source‚ and for our purposes‚ the food sources were corn syrup and molasses. Our hypothesis was that the yeast cells would ferment the most when there was a higher concentration of molasses/corn syrup. In order to test this‚ we created 10 test tubes with decreasing concentrations of molasses/corn syrup using a serial dilution. Each test
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