Irresistible? By Elizabeth Potter December 5‚ 2012 Lab Section 503 Abstract The over all goal of the Irresistible lab was to verify a buffer’s ability to resist changes in pH with consecutive 1mL additions of either a strong acid (HCl) or base (NaOH). The experiment entailed preparing a combination 10 buffered and non-buffered solutions and then monitoring the pH changes as a strong acid or base was added to the solution. By performing this experiment‚ it was found that with increasing amounts
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Julie Nguyen Equilibrium Lab 4-28-14 I. Purpose To study the affect of temperature & concentration changes on systems in equilibrium II. Safety Wear apron Wear goggles Do not spill chemicals Clean up after use Wash hands Chemicals are TOXIC (by Britney Spears) III. Procedure A. Iron-thiocyanate equilibrium Pipet .3mL of 1 M iron (III) nitrate and .3 mL of 1 M ammonium thiocyanate. into clean 250 mL beaker. Add 75 mL of DS water. Mix well. Divide the solution into equal
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n this lab experiment factors that affected solubility are temperature‚ liquids‚ concentration‚ pressure‚ polarity‚ and molecule. In this experiment we use temperature‚ centrifuge‚ and concentration solutions to be able to achieve the results that we wanted. Step one of the experiment was to mix HCl‚ to cause a precipitation form‚ after that we had to decant the solution‚ then we used a centrifuged to separate the the precipitate of the supernatant liquid. After the decant was done‚ then the process
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African Diaspora and the World After reading the short story “Diaspora” by Joanne Hyppolite‚ I got a vivid understanding of how diaspora can have an effect on one’s identity. Over the past month we have studied many theories and concepts concerning race‚ gender‚ and politics. There are three theories that capture the essence of Joanne Hyppolite’s worldview as a Haitian growing up in America: intersectionality‚ identity‚ and diaspora. Individuals oftentimes experience the theory of Intersectionality
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CHEMISTRY 110 GENERAL CHEMISTRY I INFORMATION SHEET Fall 2011 Instructors: Professor Ashok Kakkar Otto Maass Chemistry Building‚ room 313 Tel: (514) 398-6912 Office hours: By appointment‚ e-mail via WebCT to arrange meetings. E-mail: use webCT Professor Scott Bohle Otto Maass Chemistry Building‚ room 233A Tel: (514) 398-7409 Office hours: By appointment‚ e-mail via WebCT to arrange meetings E-mail: use webCT Professor Bryan Sanctuary Otto Maass Chemistry Building‚ room 224 Tel: (514) 398-6930
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RPBRL: R P Basmati Rice Mill Limited * RPBRL has been in operations for the last 20 years and known as one of India’s leading manufacturers and exporters. * RPBRL is a Government approved and ISO 9001:2000‚ HACCP Certified Company. * RPBRL is supplying Basmati Rice to clients in Saudi Arabia‚ Kuwait‚ Yemen‚ Bahrain‚ Doha‚ Dubai‚ Cyprus‚ South Africa‚ Switzerland‚ Germany‚ France‚ Mauritius‚ etc. * It have 250 employees in all offices and representatives in 19 countries. * It is
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Ben Quinones AP Chem Mr. Perry 25 January 2013 Molar Mass by Freezing Point Depression Conclusion: My Lab unsuccessfully found the molar mass of the unknown given to us in the lab. We were tasked with finding the molar mass of an unknown compound using the colligative property of Freezing Point Depression. The way we did this was first finding the temperature at which ice crystals form for just regular BHT. Luckily thanks to our TA we were given temperature probes so we could pinpoint exact
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64. Interpret the following results: A. The color of the medium remains purple or light blue-gray; there is also no change in the texture of the medium. * No change B. Change in the color of litmus from purple to pink or pink-red throughout the tube. Upon further incubation a white ring of litmus forms at the bottom of the tube at the pink-red color is now present only at the top of the tube. Still further incubation leads to the formation of a rennet curd at the bottom of the
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Michael Ames Ms. Martin IPS Per. 1 11-3-09 Sludge Lab Report A few weeks ago‚ I got a container full of “sludge”. I was asked to separate it into its four components and identify each one to help me better understand how to separate mixtures ad identify substances. My original sludge had a liquid on top and solid(s) on the bottom. The liquid was clear‚ and most of the solid was tan. There was a small layer of blackish/brownish particles in the middle of the tan solid. There were small yellow
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pigment separation. • Use evidence gathered from the chromatograms to support their conclusions about which suspects can be excluded from suspicion based on evidence. • Understand that the separation of dye molecules in chromatography is a physical property of the dye and movement of the dye is unique for each different dye molecule. • Defend their conclusions about the dyes based on the evidence that they gathered. TIME ESTIMATE: Prep: 60 minutes (cutting paper stripes and marking the crime scene strips
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