On October 8th‚ 2014 at 6:00 P.M‚ I attended The Sisters of Sigma Alpha Iota‚ Alpha Upsilon Chapter which was located in the Davis Hall‚ of the Gallagher-Bluedorn in Cedar Falls‚ Iowa. This was a classical recital being performed. The reason I chose to attend this recital‚ I saw on the website one of the instruments being played was a piano. The first performance of this recital was a song “Sigma Alpha Iota Chorale” by Margaret Blackburn Arr. E.K.W. Xi Chapter 1946‚ sung by Linnea Casey‚ Stephanie
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b) Write the anode and cathode half-reactions‚ and the net cell reaction for the above diagram. [ T/I / 2 ] Oxidation: Zn (s) Zn2+ (aq) + 2e- Reduction: Cu2+ (aq) +2e- Cu(s) Zn (s) + Cu2+ (aq) +2e- Zn2+ (aq) + 2e- + Cu(s) Zn (s) + Cu2+ (aq) Zn2+ (aq) + Cu(s) c) Write the cell notation for the above galvanic cell drawn. [ T/I / 1 ] Cu(s) | Cu2+(aq) || Zn 2+(aq) | Zn (s) d) Calculate the percent error of the cell potential for the above galvanic cell. Show all
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3-CHEMICAL KINETICS: THE IODINE-CLOCK REACTION J.CHAN1 and C.CABANLIG2 1NATIONAL INSTITUTE OF MOLECULAR BIOLOGY AND BIOTECHNOLOGY‚ COLLEGE OF SCIENCE 2NATIONAL INSTITUTE OF MOLECULAR BIOLOGY AND BIOTECHNOLOGY‚ COLLEGE OF SCIENCE UNIVERSITY OF THE PHILIPPINES‚ DILIMAN‚ QUEZON CITY 1101‚ PHILIPPINES DATE SUBMITTED: JANUARY 8‚ 2013 DATE PERFORMED: DECEMBER 5‚ 2012 ------------------------------------------------- ABSTRACT The kinetics of the reaction between persulfate (S2O82-) and iodide
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There are many different ingredients in a kitchen that causes a chemical reaction with baking soda. This experiment was designed to test 4 kitchen ingredients(Omega oil‚ water‚ lemon juice‚ and vinegar) mixed with baking soda‚ to see which one will cause a balloon to expand. It was hypothesized that baking soda mixed with lemon juice and vinegar would cause the balloon to expand. Using these ideals the experiment was completed and the data was recorded. It was decided that the hypothesis was correct
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THE CLASSIFICATION OF CHEMICAL REACTIONS Danny Bhatt SCH3U0-G Mr. Gandhi Wednesday‚ April 1st‚ 2014 INTRODUCTION The purpose of this lab is to determine the different types of chemical reactions and differentiate between them based on similar characteristics of each set category. In this lab it is hypothesized that every chemical reaction which was observed would fall under already set categories (that are: synthesis‚ decomposition‚ single displacement‚ double displacement‚ combustion and
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Stoichiometry of Chemical Reactions Written by: Ade Istianto (2014990003) Aprizky Bagus Heldinto (2014990002) Deas Pratama (2014360004) Paskah Andreas Deo Gratias (2014370005) Sampoerna University ABSTRACT This experiment is endure to determine and study about the stoichiometry of chemical reactions in certain chemicals. The experiments were to make sure student are able to use and learn the Job’s method-the method of continuous variation-for determine the reaction stoichiometry. In the method
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Thermochemistry: An Ice Calorimeter Determination of Reaction Enthalpy D. F. Nachman 6/23/2010 Abstract: An ice calorimeter was used to study the reaction of magnesium metal and 1.00M sulfuric acid solution: Mg(s) + H2SO4(aq) →MgSO4(aq) + H2(g). We found the experimental molar enthalpy of reaction to be ΔH = –355 ± 17 kJ/mol at 0°C‚ 24% lower than the textbook value of ΔH° = –466.9 kJ/mol‚ reported at 25°C. Introduction Whether a chemical reaction occurs spontaneously or is driven by an outside force
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Concentration vs Rate of reaction Brandon Introduction A reaction rate is the speed at which a chemical reaction will occur. Heat‚ concentration of a chemical‚ Surface area or a catalyst‚ will affect the rate of reaction. The concentration of a chemical will speed up of the reaction because the reactant particles have become more crowded therefore increasing the chance of productive collisions. In this practical the chemicals will be Sodium thiosulphate and Hydrochloric acid which will produce
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Alka-Seltzer Reaction Rates Lab What are the different factors the effect the reaction rate of Alka-Seltzer? Matthew Arkfeld Leah Gilligan Jessie Abbott Period 4 June 2nd‚ 2008 Background Research: o The objective of the experiment was to determine if different factors affect the reaction rate of Alka-Seltzer. Alka-Seltzer provides fast relief to acid indigestion‚ upset stomach‚ heartburn‚ headaches‚ body aches and pains. It is an antacid and pain relief medicine used by millions
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From the results recorded it was identified that activity A and C had exothermic reactions‚ whilst activity B had an endothermic reaction. Each of the activities had initially begun with 23.4/8/9oC‚ however‚ within one minute of adding the 2nd reactants‚ the results began showing‚ as seen from the graph. Activity A and C had risen in temperature‚ with A gaining 4oC and in total of 2 minutes having the temperature of 27.9oC along with C increasing by 2.2oC and within 2 minutes of the experiment having
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