The Lab Report‚ Significant Figures & Working with Numbers CHMY 142-18 Experiment 1 September 4th‚ 2009 Introduction: This experiment is dealing with the relative accuracy of an individual measurement. Data will be provided to perform the calculations asked for. The purpose of this experiment is to know how to use significant figures and to get formularized with making proper laboratory reports. Procedure: Use the data table’s information to solve the missing
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01.07 Accuracy and Precision: Balance Lab Worksheet Data * Below is the table that you will complete for the virtual lab. Either type your results into this table or print the table from the virtual lab (it must be submitted to receive full credit for this assigment.) * To print from the virtual lab. 1. Be sure the data table is viewable. 2. Right-click (PC) or Command-Click (Mac) on the table and select print. Part I: Density of Unknown Liquid | | Trial 1 | Trial
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Jahzeel Morales AP Chemistry December 12‚ 2014 Determination of the Molar Mass of Volatile Liquids Theory: Molar masses‚ can be seen and used daily in chemistry. In this lab‚ the ideal gas law helps determine and evaluate the molar mass of gases and volatile liquids. The ideal gas law compares four properties of a gas which include pressure‚ volume‚ moles‚ and temperature. During this experiment‚ the moles would be unknown‚ in effect the student must use a substance mass divided by its molar mass
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1 Class XII: Chemistry Chapter 1: The Solid State Concept 1. Solid: Solid is a state of matter in which the constituting particles are arranged very closely. The constituent particles can be atoms‚ molecules or ions. Properties of solids: a. They have definite mass‚ volume and shape. b. Intermolecular distances are short and hence the intermolecular forces are strong. c. Their constituent particles have fixed positions and can only oscillate about their mean positions. d. They are incompressible
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• The equilibrium law DYNAMIC EQUILIBRIUM forward A +8 reaction ""r=====~’~ reverse reaction Most chemical reactions do not go to completion. Once some products are formed the reverse reaction can take place to reform the reactants. In a closed system the concentrations of all the reactants and products will eventually become constant. Such a system is said to be in a state of dynamic equilibrium. The forward and reverse reactions continue to occur‚ but at equilibrium
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disenchantment of the 1001 Nights notion by the representation of sexuality - Thompson’s story of the slave children Habibi and Dodola builds up a density of themes‚ in which the reader immerses himself and for which he often wishes a knife to slice this multi- layered story to bring it into a chronology. It never loses its train of thoughts but still requires the reader to disentangle the story to understand it. The form of the story draws on the tradition of the 1001 Nights Stories‚ with its
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LEDs… Release only ONE color of light Produce very little heat What is an LED? They are semiconductor devices that can convert electrical energy directly into light due to the nature of the bonding that occurs in the semiconductor solid. Type of bonding is directly related to conductivity of solid. Bonding in Elemental Solids Electronegativity – the ability of an atom to attract electrons to itself. Atoms with low e.n. (metals) don’t hold valence electrons tightly valence
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Analysis of Alum The objective of this lab is to run tests on a compound and analyze the substance itself‚ and then determine whether or not the compound is actually alum. Jill Cline Period 3 November 19‚ 2013 Laurel Hergenroeder and Sarinah Martelli Introduction/Purpose The purpose of this experiment is to run various tests on the substance called alum. (AlK(SO4)2 ∙ 12H2O). These tests like the process of filtration heating the solution will reveal things
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SEPARATION OF MIXTURE OBJECTIVE: To separate the components of a mixture based upon physical characteristics of each component within the mixture. Secondly‚ to determine the mass of each component by using the knowledge of separation techniques. SAFETY REQUIREMENTS: Do Not Pipette By Mouth Read the Chemical Safety Information Dress Appropriately Identify the Safety Equipment Don’t Taste or Sniff Chemicals Don’t Casually Dispose of Chemicals Down the Drain MATERIALS:
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3.09 Honors: Here is sample data and how you would do the calculations. Of course‚ you will need to use your data‚ but you can follow along step-by-step. In the lab‚ you must record the following measurements: mass of your empty crucible mass of your crucible and the hydrate (the original chemical) mass of the crucible and chemical after heating(which is the dehydrate) The other two in the data table are calculated (mass of hydrate and mass of dehydrate) SAMPLE DATA – YOU MUST USE YOUR
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