Physical and Chemical Change Objective: Recognize and distinguish between chemical and physical changes. Materials: - lab balance - microspatula - lab burner - dropper pipet - 5 test tubes - mortar and pestle - test tube rack - magnet - test tube holder - insulating pad - watch glass - safety goggles - glass square - lab apron or coat - copper sulfate pentahydrate - iron fillings - sodium chloride - magnesium ribbon - hydrochloric acid - paper
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BACK TITRATION- DETERMINATION OF THE CARBONATE CONTENT IN GARDEN LIME NAME: OSEI BONSU ERIC ID: 3906409 EXPERIMENT: I.2.2.1.
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NAYLECIA CHERRY 6767 Bennington Rd. Houston‚ Texas 77028 Tel: 405-512-1012 Email: ncherry88@hotmail.com I am a reliable and an extremely determined individual‚ as well as a very proud mother of two. I have a very extensive work experience in customer service. Because this is a growing field I am always willing to learn new things and develop my work ethics in a professional work environment.WORK HISTORY Telemarketing Sales Agent Aug 2009-Nov 2009 TCIM Services Inc. Edmond‚ Oklahoma I placed
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Contents Project Overview: The project at hand involves constructing a fifth hostel at T. A. Pai Management Institute‚ Manipal. For the same‚ all the major timelines have been decided and special emphasis has been made to make sure there is least amount of wastage of resources (human‚ capital) and to ensure their maximum utilization. Keeping in view the increasing number of student intake at TAPMI‚ there has been a situation in campus wherein the male students are living
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This form can be used to organize your thoughts about a case. As you perform your analysis remain open to the fact that your interpretation of the facts may change and therefore you should constantly revisit your answers. Define the Problem: Describe the type of case and what problem(s) or issue(s) should be the focus for your analysis. It is a decision case‚ in which Joseph Galli as the vice president of sales and marketing need to propose a solution to the company directors‚ in order to
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Questions Presented Can Jane Healey get financial compensation from Red’s Tavern? Brief Answers Yes‚ if Jane can prove that Raymond was “visibly intoxicated” when he was served by Red’s Tavern‚ she can recover from Red’s Tavern. Statement of Facts Jane Healey has retained our law firm to represent her to recover damages for her injuries. On November first‚ 2011‚ Jane was on her way home from work. As Jane approached the intersection of 14th Street
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acceptable range. Each group (I was with William Yung for this experiment) was tasked with testing one homogenate. The homogenate tested by our group was liquid spinach. Each team added HCl and NaOH to their homogenate. As we found out in our experiment‚ HCl was an acid so when added to the liquid spinach the pH lowered and NaOH‚ being a base‚ rose the pH level when added. The better the buffer the homogenate is‚ the less its pH changes
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base is used the more number of moles are needed to neutralize. To increase the number of moles you can increase the concentration or decrease the volume. If we take an overview of the reaction‚ the protons from the HCl moved to the NaOH or the HCl donated H+ ions to the solution and NaOH gave OH- ions to the solution. And as a result a salt (NaCl) and water were formed. The methods used were quiet precise. The burette and pipette have some limitations due to being less precise. The volume of burette
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LAB REPORT ON VERIFICATION OF HESS’S LAW Our purpose of doing this lab was to prove the Hess’s law correct. Hess’s law suggests that the enthalpy change of a reaction must be equal to the sum of the enthalpy changes of the related reactions which lead to the original reactions. The following are the reactions at the lab; 1) NaOH ( s) NaOH (aq) 2) NaOH (aq) + HCl (aq) NaCl (aq) + H2O (l) 3) NaOH (s) + HCl (aq) NaCl (aq) + H2O (l) As explained before‚ Hess’s Law states that the enthalpy
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properties‚ such as blue and red litmus papers‚ beakers‚ and wells. Data Tables: Substance Name Color Odor Heat Effect Cold H2O Hot H2O Litmus Test Dilute HCl Dilute NaOH Mg Silver None None None Not soluble‚ small bubbles Red litmus paper Heat; smoking None Cu Gold Pungent Gas evolution None Not soluble Red litmus paper Nothing Cold Zn Silver None None None Not soluble Red litmus paper Cold Cold MgO White Pungent None Soluble‚ mixes Separates mixture‚ and then returns Red
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