Subject: Chemistry SL Title: Preparation of a salt (lead iodide) by using precipitation method. Aim: To produce 1.50 g of lead iodide‚ PbI2‚ assuming 100 % conversion‚ using 1.00 g solid potassium iodide‚ KI‚ and 0.1 M lead nitrate‚ Pb(NO3)2 solution of volume 30 cm3 and hence calculate percentage yield. Calculations: 2KI(s) + Pb(NO3)2( aq) —> PbI2 (s) + 2KNO3 (aq) Mass of PbI2 to be produced = 1.5 g Moles of PbI2 = = 0.003 Moles of KI = 0.003*2 = 0.006 Mass of KI = 0.006*166 = 1.00 g
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When doing research nurses have come up with theories to expand nursing practice and these theories help ideas to be composed. Theory backs and puts forward research problems‚ research discoveries confirm or disprove theory explanations‚ as stated by Borbasi and Jackson‚ (2012).The research article that I have chosen for this assignment is from International Journal of Nursing Practice. It is a qualitative study that was written by King and Walsh‚ (2007) and the topic is ‘I think PCA is great‚ but
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Experiment 1: Viscosity of Liquids Victoria Kulczak Lab Partners: Laina Maines & Heidi Osterman Date of Lab: 2/21/11 Due Date: 2/28/11 Abstract: The goal of this experiment was to determine the viscosity of given liquids. Two different methods were employed‚ the first measures time of flow of several methanol-water solutions‚ from point A to point B. The second method involves dropping a foreign object‚ in this case a sphere‚ into a cylinder of glycerol and measuring the time it takes for it to
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7.6 Summary 1. 7.6 Molecular Orbital Theory a. Intro i. Molecular orbital theory states that the atomic orbitals involved in bonding actually combine to form new orbitals that are the property of the entire molecule‚ rather than of the individual atoms forming the bonds. 1. The new orbitals are called molecular orbitals. ii. Electrons shared by atoms in a molecule reside in the molecular orbitals. iii. Molecular orbitals are like atomic orbitals
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Chapter 04 - Fundamentals of Cost Analysis for Decision Making 4-61. (continued) Incremental Cash Flow – Alternative A Make Containers and Perform Maintenance Year of Operation 2 3 0 Buy GHL Tax savings on purchase Cash flow on purchase Other materials Labor: Supervisor Labor: Workers Rent: Warehouse Maintenance Other expenses Manager’s salary Total costs Tax savings Cash flow due to costs Tax effects of depreciation Tax effect of GHL costs Total cash flow Discount rate factor (10%) Present
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In this essay‚ it will be discussed how the Kinetic Molecular Theory explains many gas law specifically Boyle’s gas law‚ Charles’ gas law‚ and Avogadro’s gas law. To understand what will be talked about is to first know what the Kinetic Molecular Theory is. In our textbook is says it is “A simple model for gases that predicts the behavior of most gases under many conditions.” First off‚ we will take a look at Boyle’s Law. As stated in our lab manual “at constant temperature the pressure which a given
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PageOut® Quick-Assessment Preview http://hawwat.pageout.net/page.dyn/instructor/assessment/quick_assessme... Quick-Assessment Review BIO Instructions BIO Go to : http:// This assessment is worth 30 points. 1. The Shine-Dalgarno sequence is a (1 point) a. b. prokaryotic mRNA sequence that binds lF-3. prokaryotic mRNA sequence that binds the 16S rRNA of the small ribosomal subunit. prokaryotic mRNA sequence that binds the 16S rRNA of the large ribosomal subunit. eukaryotic rRNA sequence
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Wrestlers Cutting Weight Some athletes do extra things to help them win‚ whether it be for a football player doing extra work outs‚ or taking steroids to a baseball player staying late from practice to work on his hit. In wrestling‚ some people do drastic things to help them be the best. “Kyle Talley of St. Mark’s‚ a state champion at 145 pounds last year‚ now wrestles at 152 pounds‚ about six pounds lighter than his natural weight” (Tresolini). Many wrestlers use unhealthy ways to cut weight; … “of 713
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Use of Ionic liquids in Industrial Applications Samar Noureldin ‚ Amel Elsadig ‚ Mohammed Mahjob Department of Chemical engineering ‚ University of Khartoum‚ Sudan Paper of 4th grade project ـــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــ
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Healthy Body Weight Michael Carl Nutrition and Diet Therapy __________________‚ RD‚ LD August 26‚ 2012 The Interview Interview: Kim Allman‚ my sister‚ lost 45 lbs. She has gained 5 back. She started her weight loss journey through the Leesburg Business Wellness Challenge where local businesses compete against each other to lose weight. She has maintained her weight loss of 40 pounds by working out. She hasn’t really made any dietary changes other than reduced portions
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