Title of Practical: The Effect of Concentration on Reaction Rate Aim: To use a simple reaction between sodium thiosulphate and hydrochloric acid to discover concentration this determines how fast chemical reactions occur. Independent Variable: Concentration of hydrochloric acid (%) Dependent Variable: Time taken for chemical reaction to take place (sec) Hypothesis: My prediction is that the increased concentration of the thiosulfate will in turn lead to an increase in the rate of reaction
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The Effect of Concentration Gradient on Osmosis Abstract: Osmosis is the passive movement of water from an area of higher concentration to an area of lower concentration‚ usually across a membrane (Thorpe 2013). Tonicity is the ability of a solution surrounding a cell to gain or lose water (Reece 2011). There are many factors that affect the rate of osmosis. These include temperature‚ surface area‚ difference in water potential‚ pressure‚ light and dark and most importantly what we will be talking
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Sleep Deprivation ‘What effects does sleep deprivation have on people?’ Assessment Type 4: Investigation – STAGE 2 ESL CONTENTS PAGES INTRODUCTION…………………………………………………………………………………………………………………………3 DEFFINITION………………………………………………………………..……………………………………………………………3 STATISTICS………………………………………………………………….…………………………………………………………….4 CAUSES & EFFECTS…………………………….………………………………………………………………………………………4 SOLUTIONS…………………………………………………………………………………………………………………….………….5 CONCLUSION…...…………………………………………………………………………………………………………………………5
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RESULTS AND DISCUSSION REPORT—EXPERIMENT 3 (CHEMICAL KINETICS) CALCULATIONS Effect of Concentration on Reaction Rate [S2O32-]initand [H+]init for each run‚ knowing the original concentrations and volumes of [S2O32-]‚ [H+]‚ and water used. [S2O32-]init= __(M[S2O32-])(V[S2O32-])__ [H+]init= _____(M[H+])(V[H+])____ V[S2O32-]+V[H+]+V[water] V[H+]+V[S2O32-]+V[water] Run 1 [S2O32-]init= (0.15 M)(10 mL) (10+3+2)mL = 0.1 M [H+]init= (3 M)(2
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Sleep Deprivation About one in three adults fail to get enough sleep each night. Sleep deprivation occurs when a person doesn’t get enough hours of sleep. On average most adults need about seven to eight hours of sleep a night. There are many different causes of sleep deprivation‚ these causes lead to certain effects on a person. There are also many ways to avoid and cope with sleep deprivation. Sleep is needed to “charge” a persons body‚ especially the brain and without sleep the body will not
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Literature Review of Sleep Deprivation Sleep deprivation is a pattern of sleeping where an individual fails to get enough sleep during the night. On average‚ adults need seven to eight hours‚ were teens and children need an average of nine hours of sleep to feel well rested (1). Numerous literatures expand on the topic of sleep deprivation and the effects it has on the human body. This literature can be divided into three parts: 1) studies that show how sleep deprivation causes changes in learning
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Title: The effect of temperature on beet cell membranes. Introduction: 1. Eukaryotic cells are much more intricate than prokaryotic cells. The first thing observed is the assortment of structures in the cytoplasm. The fluid filled region between the nucleus and the plasma membrane. These structures along with the nucleus are the organelles‚ each having a specific function in the cell. The organelles are by membranes divided in proficient sections .The plant cell is made up of a rigid thick wall
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Running head: OUTCOME OF SLEEP DEPRIVATION ON COGNITION The Effects of Sleep Deprivation on Various Cognitive Measures The Effects of Sleep Deprivation on Cognitive Processes Sleep deprivation is a common occurrence in modern culture. Every day there seems to be twice as much work and half as much time to complete it in. This results in either extended periods of wakefulness or a decrease in sleep over an extended period of time. While some people may like to believe that they can train
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Sleep Deprivation Among College Students Introduction A college student that wants to receive that good grade point average at the end of the semester does not always receive the recommended six to eight hours of sleep every night. Not only is sleep just something we need‚ it is a necessity and is needed to keep our bodies healthy. This‚ as a college student‚ is a very typical way to get through four years of school‚ a lack of rest and a lot of homework. As a college student‚ we tend to spend
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Sleep Deprivation Introduction Attention Material: Blame it on the light bulb. College students and individuals across the country are suffering from a health problem that can be more detrimental to their health than some forms of cancer. What is it? Sleep Deprivation. Motivation Material: People are losing sleep daily‚ in such a fashion that most have trouble staying awake during work‚ driving‚ or even in class. Thesis & Overview: Sleep deprivation is a serious medical situation that can
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