electrons maximum and the 3rd energy level is after the 2nd and can only contain 8 electrons maximum too. The positive protons in the nucleus and the negative electrons in the atom balance out each other making the atom neutral and balanced. I choose silver as my element for my project‚ but how did I know how to create it you may ask? In order to make a model of an atom you must know certain information that is conveniently given to you in the periodic table of elements to determine the atomic structure
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The goal for our lab activity was to make a silver mirror by reducing silver ions with dextrose. The materials that we used were acetone‚ 5 mL of 1.5 M ammonium nitrate solution (NH4NO3)‚ 5 mL of 0.5 silver nitrate solution (AgNO3)‚ 10 mL of 5% dextrose solution (C6H12O6)‚ 10mL of 10% sodium hydroxide solution (NaOH)‚ a 50 mL beaker‚ a 250 mL Florence flask with a rubber stopper‚ a 10 mL graduated cylinder‚ a waste beaker‚ and distilled water. The first thing we did was rinsed the beaker‚ cylinder
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LAB #1 - Assessment Worksheet 1) What does DACL stands for and what does it mean? DACL is a list of Access control entries; it defines access control for users and groups. 2) Why would you add permissions to a group instead of the individual? What policy definition do you think is required to support this type of access control implementation? When adding permissions to a group it makes it easier for a large organization and just set up the access for the departments‚ or job roles. Creating GPO
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Nitration of Naphthalene Wed 2/25/2015 Lab report # 1 Abstract: The purpose of this experiment was to nitrate naphthalene with nitronium ion‚ which is formed at low concentration from a reaction of nitric acid and sulfuric acid. The percent yield from the experiment was 54.4% of the product‚ and the melting point of the possible results were 59 °C for 1-nitronaphthalene‚ and 78°C for 2-nitronaphthalene. Introduction: Polynuclear aromatic hydrocarbons such as naphthalene can be nitrated
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In Graph 1‚ each line of color represents a different level of pH added to the solution. When pH 9 was added‚ it produced the highest rate of reaction (the most oxygen was produced)‚ whereas when the more acidic pH 5 was added‚ the rate of reaction was much slower‚ and less efficient. The higher the oxygen evolved (gas produced)‚ the more reactions were being produced/higher rate of reaction. Different types of enzymes’ reaction proportions differ based on the pH being added. For example‚ intestinal
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mixture melting point of a mixture of the two pure compounds. c) Identify an unknown organic compound by determining its melting point and mixture melting point. Procedure and Observations: Using the procedure outlined in Appendix A of the Lab Manual‚ approximately equal samples of p-Nitrophenol and acetanilide‚ which are known to have the same melting range of 113-114 degrees Celcius‚ were taken and inserted into the melting point apparatus. The melting points of the compounds were noted
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Determination of the Empirical Formula for Zinc Chloride Name:__________________________________________ Course______ Period:____ Prelab Show your Calculations for the following problems 1. How many grams of sulfur would combine with 26.1 g of potassium to form K2S? 2. A 1.31g sample of sulfur was reacted with chlorine to form 4.22g of compound. What is the empirical formula of the compound? 3. 0.256g of a lanthanum oxide was decomposed and produced 0.219g of lanthanum. What is the
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BIOS252 WEEK 1 Lab 1 Muscular System Overview To complete this worksheet‚ select: Module: Support and Movement Activity: Anatomy Overviews Title: Muscular System Overview 1. Click the Skeletal Muscle Cross Section and identify each of the following. Consult your textbook for a description of each. Epimysium: Outermost layer of dense‚ irregular tissue‚ surrounding the entire muscle. Deep Fascia: Layer of fibrous connective tissue that surrounds an individual
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Formula One‚ also known as Formula 1 or F1 and referred to officially as the FIA Formula One World Championship‚[2] is the highest class of single-seater auto racing sanctioned by the Fédération Internationale de l’Automobile (FIA). The "formula"‚ designated in the name‚ refers to a set of rules with which all participants’ cars must comply.[3] The F1 season consists of a series of races‚ known as Grands Prix (from French‚ originally meaning great prizes)‚ held throughout the world on purpose-built
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Reconciling and Clarifying CLV Formulas Peter S. Fader www.petefader.com Bruce G. S. Hardie www.brucehardie.com † March 2012 1 Introduction A standard part of many contemporary Marketing courses is a case or exercise in which students are expected to compute customer lifetime value (CLV). Typically they are given an average retention rate r‚ an average net cashflow of $m per period (having accounted for “account maintenance” costs)‚ and an assumed discount rate d. Given these inputs‚ they are
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