Lab 4: Le Chatelier’s Principle Name: Cammey Mahowald Lab Partners: None Date of Experiment: March 16‚ 2015 Course: CHE 112 Abstract: The purpose of this experiment is to understand the components of a reaction at chemical equilibrium and use Le Chatelier’s principle to predict the direction an equilibrium position will shift upon changes in the concentration‚ temperature‚ and pressure. It was determined that in the equilibrium of chromate and dichromate it is an exothermic reaction and in the
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Introduction An atom is the smallest part of an element that can take part in a chemical change. The word “atom” comes from the Greek “atomos”‚ which means “unable to be cut”. Atomism is the philosophy of the existence of atoms. The first theories of atoms come from India. There was a Hindu sage named Kanad that hypothesized that all mater was composed of earth‚ water‚ light‚ wind‚ ether‚ time‚ space‚ mind and soul. Then another philosopher named Pakuda Katyayana suggested that everything can be
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Tashia & Tobi Lab Report experiemt 5 INTRODUCTION In this experiment we were wanting to find the specific heat of an unknown metal and determining what metal it was by using the formula q=c X m X change of temperature. We did two trials to compare the two and see what we come up with. EXPERIMENTAL First we chose an unknown metal‚ in which our unknown was unknown metal 2‚ the metal was gray and irregular shaped. We setup the calorimeter and got a mass of it just being empty then we got
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CHM130 Lab 4 Calorimetry Name: Conor Westerman Data Table: (12 points) ALUMINUM METAL Pre-weighed Aluminum metal -100 grams sample mass (mmetal) Temperature of boiling water and metal sample in the pot (Ti(metal)) 365k and 345k Temperature of cool water in the calorimeter prior to adding hot metal sample (Ti(water)) 364k Maximum Temperature of water/metal in calorimeter after mixing (Tf) 365k LEAD METAL Pre-weighed
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Lab 4: Endocrine System Physiology | 1. | | Refer to Activity 1: Determining Baseline Metabolic Rates. How did the baseline metabolic rates of the three rats differ? Answer: | The metabolic rates for the thyroidectomized and hypophysectomized rats were lower than that of the normal rat. | | | 2. | | Why did the metabolic rates differ? Check all that apply: Answers: | The hypophysectomized rat lacked thyroid-stimulating hormone. The thyroidectomized rat lacked thyroxine hormone.
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Antonio Navarro NETW310‚ Christine Adams 03/28/2015 Lab #4‚ Installation in the Outside Plant Section I: Use a reference such as the IRWA (www.irwaonline.org) to answer the question below. Cite your reference. (citation is worth 2 points) 1. What is a right-of-way? (4 points) Full Definition of RIGHT-OF-WAY 1 : a legal right of passage over another person’s ground 2 a : the area over which a right-of-way exists b : the strip of land over which is built a public road c : the land occupied
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Problem Statement: Chem-Med Company is positioned strongly in its industry to achieve high growth and earn large profits in the future‚ but it is in need of financing. To secure this financing‚ Chem-Med must address concerns of potential financers and investors regarding liquidity‚ efficiency‚ cash flow‚ and the need for funding despite apparent growth. In addition‚ Chem-Med’s primary competitor‚ Pharmacia‚ is out-competing the company and stealing valuable market share and sales volume with lower
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Philippine Science High School-Central Luzon Campus (S.Y. 2014-2015) CHEMISTRY 1 QTR 3 POST-LAB REP 1 Alessandria Maeve M. Ocampo | 9-Samat | January 5‚ 2015 RESULTS AND DISCUSSION Solubility is the ability or property of a certain solute to dissolve in a particular solvent. [1] Miscibility‚ on the other hand‚ is the ability or property of substances to mix in all proportions or thoroughly. This term is usually used in the mixing of liquid substances. [2] In the experiment‚ the students observed
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Preston Durrill‚ Instructor M 8:00-9:00‚ 1:30-5:00 Randolph Hall‚ Room 144 Tu 9:00-11:00‚ 4:00-5:00 Office phone: 540-231-6774 W 8:00-9:00‚ 1:30-5:00 Home phone: 540-961-5179 Th 9:00-12:00‚ 4:00-5:00 e-mail: pdurrill@vt.edu F 8:00-9:00‚ 1:30-3:00 Class times: 2:00-3:15 Tuesday and Thursday in McBryde 100. Evening help sessions: Wednesdays 5:00-6:30 p.m. in Hancock 209 beginning on September 4. ON WEEKS WHEN THERE IS A TUESDAY TEST‚ THE HELP SESSION WILL BE ON MONDAY INSTEAD OF WEDNESDAY
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solute in grams per 100 grams of water (shown on the Y axis) at various temperatures in degrees Celsius (shown on the X Axis). Each solute has a different curve. Materials: 1. 2. 42g of unknown salt A (14g per trial) 3. 1 small beaker 4. 2 large beakers 5. 3 test tubes 6. Distilled water 7. Thermometer 8. Hot plate 9. Electronic balance 10. Stirring rod 11. Metal scoop 12. Graduated cylinder 13. Test tube racks 14. Tongs Procedure: 1
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