Biological Membrane Study: HCl‚ NaOH‚ SDS Objective and Hypothesis: The objective of this lab is to determine the effects of SDS‚ HCl‚ and NaOH on red cabbage cell membrane. Prior knowledge can tell us that the red cabbage is a red-purple color due to a pigment called anthocyanin. This is what we will be testing in the experiment. We also know that HCl is a strong acid (very low pH) and that NaOH is a strong base (very high pH). From information learned in this course (lecture/lab) we can assume that both
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Mass of CaCl2 1.00 2.00 3.00 Mass of K2CO3 2.5 g 2.50 2.50 Mass of filter paper 0.8 g 0.80 0.80 Mass of watch glass 38.5 g 38.5 38.5 Combined mass of product‚ filter paper‚ and watch glass 40.2 g 42.3 43.3 Mass of dry product 0.9 g 2.00 3.00 Calculations 1. Determine the limiting reagent for each trial. Show your calculations. (Hint: See the example in the Introduction.) Example: Trial 1: Note: These should be about the same and either CaCl2 or K2CO3 can be the limiting reagent depending
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Lab #3: Stoichiometry of a Precipitation Reaction October 14‚ 2014 Abstract: The purpose of the lab‚ Stoichiometry of a Precipitation Reaction‚ is to be able to calculate the amount of a second reactant we need to react with the reactant one. You must calculate the amount of the second reactant using stoichiometry to figure out what amount is needed. After the amount is calculated‚ you then can add it to the first reactant and it will give you a full reaction. To figure out what you
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| Preparation and standardization of 0.1 M NaOH using KHP | Analysis of unknown solid containing KHP | | Steanie Rodriguez | 6/7/2011 | CHEM-C311 Analytical Chemistry Laboratory July 7‚ 2011 The main purpose of this experiment is to identify an unknown organic acid by conducting various experiments to determine the acid’s unique properties. By determining selected constant properties of the unknown and then comparing these properties to the constant properties of known substances
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Limiting Homework English 101 Stundents Under Stress In the article “Students under Stress” author Marcia Clemmitt points out that students who are undergoing stress in school is because of the increase of homework. Too much homework is causing an increase of problems for students. The increase of homework is causing students to be depressed‚ stressed‚ and pressured unnecessarily‚ especially for students at young ages causing them to have a negative view of school. The amount of homework
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Fewer than one percent of people who are exposed to alcohol in the U.S have required medical attention due to consumption. Some people argue that strict laws on alcohol are needed to prevent people from endangering themselves or others‚ however if we taught moderation and responsibility at an early age we could still enjoy the benefits of drinking in a more controlled environment. The laws that focus on drinking need to be formed to include all of the teaching moments and benefits that go along with
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Limiting Immigration Would you reject or support David Miller’s grounds for limiting immigration? In his 2005 “Immigration: The Case of Limits” paper‚ David Miller argues in favor of the right for countries to limit immigration. He replies to defenders of open borders and gives conditions for morally acceptable immigration policies. Most importantly‚ he offers two reasons for nation-states to limit the flux of incoming long-term residents (refugees are thus not part of our discussion) to their
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Equipments and Reagents current market scenario‚ structure and practices in India. In depth market scenario includes; - Indian Healthcare Diagnostics Equipments and Reagents Market Size - Market size for Immunochemistry Equipment and Reagents Market - Market size for Biochemistry Equipment and Reagents Market - Market size for Hematology Equipment and Reagents Market - Market size for Microbiology Equipment and Reagents Market - Market size for Point of Care Equipment and Reagents Market - Market
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Kapoor‚ Taruneek 10103016 ASSIGNMENT 2 Limiting the Extent of Party Discipline in Cananda Party solidarity and cohesion have always been an integral part of the Westminster Parliamentry system. The leaders of the political parties of the Canadian House of Commons ‚ with the assistance of ’whips’‚ very strongly discipline their party members to vote on issues as a single entity‚ especially in plenary sessions (Olson‚ 2003). Although‚ some degree of party discipline is essential for any political
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on student’s lives. Playing sports comes with risk of very harmful injuries and limiting the sports played at school could make students much safer. Head injuries can take students out of the game for the rest of their lives‚ and make their lives different forever. Concussions are a big problem with sports today‚ but so is the amount of pressure put on these student athletes. limiting sports can help athletes by limiting the pressure put on them.
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