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### atomicweight

Course: CHEM 145, Fall 2009
School: Widener
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Word Count: 170

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145 Chemistry Lecture Problems Atomic Weight Calculate the average atomic weight of Chlorine given the following informaton Isotope Exact Mass Abundance 35 34.9688530 999 37 36.9659 324 Given: mass 35 mass 37 34.9688530 36.9659 abundance 35 abundance 37 999 324 Total mass abundance: abundance total abundance 35 abundance 37 abundance total = 1323 Percent Abundance: percent 35 abundance 35 abundance total...

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145 Chemistry Lecture Problems Atomic Weight Calculate the average atomic weight of Chlorine given the following informaton Isotope Exact Mass Abundance 35 34.9688530 999 37 36.9659 324 Given: mass 35 mass 37 34.9688530 36.9659 abundance 35 abundance 37 999 324 Total mass abundance: abundance total abundance 35 abundance 37 abundance total = 1323 Percent Abundance: percent 35 abundance 35 abundance total abundance 37 abundance total percent 35 = 75.5102 % percent 37 percent 37 = 24.4898 % Weighted atomic mass: mass 35 .percent 35 mass 37 .percent 37 mass Cl mass Cl = 35.45793 6/4/01 S.E. Van Bramer 6/4/01 Calculate the average atomic weight of Bromine given the following informaton Isotope Exact Mass Abundance 79 78.9183320 999 81 80.9163 978 Given: mass 79 mass 81 78.9183320 80.9163 abundance 79 abundance 81 999 978 Total mass abundance: abundance total abundance 79 abundance 81 abundance total = 1977 Percent Abundance: percent 79 abundance abundance 79 total abundance 81 abundance total percent 79 = 50.53111 % percent 81 percent 81 = 49.46889 % Weighted atomic mass: mass 79 .percent 79 mass 81 .percent 81 mass Br mass Br = 79.9067 6/4/01 S.E. Van Bramer 6/4/01 Calculate the average atomic weight of Mercury given the following informaton Isotope % Abundance 196 0.146 198 10.2 199 16.4 200 23.13 201 13.22 202 29.8 204 6.85 Given: mass 196 mass 198 mass 199 mass 200 mass 201 mass 202 mass 204 196 198 199 200 201 202 204 abundance 196 abundance 198 abundance 199 abundance 200 abundance 201 ...

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Widener - CHEM - 146
Chemistry 146 Lecture Problems Silver Chloride, Common Ion EffectFor AgCl, K sp 1.56 .1010M AgCl (s) 0 &lt;-&gt; Ag1+ (aq) X + X Cl 1(aq)mole literEqulibrium Reaction: Concentration: K sp C Ag .C Cl K sp X X2K sp .M5X = 1.249 .10MSo in an
Widener - CHEM - 146
Chemistry 146 Lecture Problems Lead Chloride, Common Ion EffectFor PbCl2 K sp 1.6 . 105Mmole literWhat is the solubility in water? Equlibrium Reaction: Concentration: K sp C Pb . C Cl K sp X .( 2 .X ) K sp 4 . X3 2 2PbCl2 (s) 0&lt;-&gt;Pb2+
Widener - CHEM - 146
Chemistry 146 Lecture Problems Acetic acid titrationStarting with the following solution of acetic acid: Ka C acid V acid5 1.79 . 10 .MMmole .liter10.100 . M 100 .mL C acid .V acid mole acid = 0.01 mole H3O+ Xmole acidFirst Calculate th
Widener - CHEM - 146
concentration.mcdS.E. Van Bramer7/3/01Chemistry 146 Lecture Problems Concentration1. Calculate the concentration (molarity) of a solution prepared by dissolving 12.00 grams of potassium chloride in water and diluting to 250.0 mL. Mass KCl V t
Widener - CHEM - 11
Chem 145, Lecture Problems Partial PressureThe partial pressure of three gasses Under the following conditions: V He1 := 1.0 liter V Ne1 := 1.0 liter V Ar1 := 2.0 liter From The Ideal Gas Law: Since: Rearanges to: PHe1 V He1 R T P V = n R T n= P
Widener - CHEM - 145
Chem 145, Lecture Problems Partial PressureThe partial pressure of three gasses Under the following conditions: V He1 := 1.0 liter V Ne1 := 1.0 liter V Ar1 := 2.0 liter From The Ideal Gas Law: Since: Rearanges to: PHe1 V He1 R T P V = n R T n= P
Widener - CHEM - 146
Introduction to Polyprotic AcidsFor this example we will study the equlibrium of carbonic acid (H2CO3) in water. This is a very important equlibrium in natural systems because the carbonate buffer is important for living organisms and this equlibriu
Widener - CHEM - 146
Introduction to Buffers:S.E. Van Bramer 2/22/97What is the concentration of all species at equlibrium in a solution prepared by mixing 1.0 mL of 1 M formic acid and 1.00 g of sodium formate and diluting to 250 mL? Constants Used: M mole liter Kw
Widener - CHEM - 145
Chem 145, Lecture Problems Gasoline HFind out the amount of energy released by the combustion of 1 gallon of gasoline. The balanced reaction is 2 C8H 18 + 25 O2 -&gt; 16 CO2 + 18 H 2O Find H rxn using H formation Hf_C8H18 := 204.8 kJ Hf_O2 := 0 kJ Hf_C
Widener - CHEM - 145
Chem 145, Lecture Problems Hydrazine HFor the balanced reaction: N2 + 2 H2 -&gt; N2H 4 Rxn 1: N2H 4 + O2 -&gt; N 2 + 2 H2O Rxn 2: H2 + 1/2 O2 -&gt; H2O kJ := 10 J Hrxn1 := -622.2 kJ mole Hrxn2 := -285.8 kJ mole-1 3-1In this problem we are looking for
Widener - CHEM - 146
Chemistry 146 Lecture Problems Acid-Base EquilibriumWhat is the equlibrium concentration of H3O+ and OH- in a solution of ammonia and ammonium chloride with the following equlibrium concentrations at 25 C? M mole liter The base reaction is: C NH3 0.
Widener - CHEM - 097
Chem 145, Lecture Problems DensityDensity: At an altitude of 40 km the density of air is 4.3 gm/m3. What is the mass of 537 m3 of air at this altitude. density volume 4.3 . gm .m 537 .m3 3(note: the unit grams is abbreviated gm in Mathcad)Equat
Widener - BSWCAL - 3
Center for Social Work Education Undergraduate Calendar for Field Instructors and Students 2006/2007 Academic Year FALL SEMESTER 2006Thursday, September 7, 2006 - BSW Classes begin Friday, September 8, 2006 - Senior Field Seminar begins Monday, Sept
Widener - PAGE - 847
Application, Page 3aSCHOOL OF HUMAN SERVICE PROFESSIONS Center for Social Work EducationMaster of Social WorkPROGRAM OPTIONS Check One Regular Full-Time Regular Part-Time Advanced Standing Full-Time Advanced Standing Part-TimeGUIDELINES FOR THE
UMass Dartmouth - TEMATH - 2
Name_ Student ID # _ Instructor _ Lab Period _ Date Due _Lab 8 Curve SketchingObjectives1. To use the computer as a tool in sketching curves. 2. To distinguish the important characteristics of a curve.Curve sketching (even with the help of a co
UMass Dartmouth - TEMATH - 2
Name _ Student ID # _ Instructor _ Lab Period _ Date Due _Lab 5 ContinuityObjectives1. To visually represent the concept of continuity. 2. To develop an informal intuition for continuity.Continuity A fuction is continuous on an interval if its
UMass Dartmouth - TEMATH - 2
Name _ Student ID # _ Instructor _ Lab Period _ Date Due _Lab 4 The Limit of a FunctionObjectives1. To learn how to numerically estimate limits. 2. To develop an intuitive understanding of the limit of a function. 3. To become familiar with left-
UMass Dartmouth - TEMATH - 2
Name_ Student ID # _ Instructor _ Lab Period _ Date Due _Lab 1 PolynomialsObjectives1. To become familiar with the definition of a polynomial. 2. To examine some of the properties of the graphs of polynomials. 3. To conjecture a general result fr
UMass Dartmouth - TEMATH - 2
Name_ Student ID # _ Instructor _ Lab Period _ Date Due _Lab 2 Power FunctionsObjectives1. To become familiar with the definition of a power function, an even function, an odd function, and a root function. 2. To examine some of the properties of
UMass Dartmouth - TEMATH - 2
Name_ Student ID # _ Instructor _ Lab Period _ Date Due _Lab 9 Exponential FunctionsObjectives1. To develop an ability to interpret the important characteristics of the graphs of exponential functions. 2. To become familiar with applications of t
UMass Dartmouth - TEMATH - 2
Name_ Student ID # _ Instructor _ Lab Period _ Date Due _Lab 10 Logarithmic FunctionsObjectives1. To develop an ability to visualize the graphs of logarithmic functions. 2. To become familiar with applications of the logarithmic function.Data T
UMass Dartmouth - TEMATH - 2
Name_ Student ID # _ Instructor _ Lab Period _ Date Due _Lab 3 The Complete GraphObjectives1. To use the computer as a tool in sketching curves. 2. To distinguish the important characteristics of a curve. 3. To draw a complete graph.Curve sketc
UMass Dartmouth - TEMATH - 2
Name_ Student ID # _ Instructor _ Lab Period _ Date Due _Lab 12 Parametric EquationsObjectives1. To investigate applications of parametric equations. 2. To develop an understanding of how parametric equations can be used to solve problems.To Se
UMass Dartmouth - TEMATH - 2
Name_ Student ID # _ Instructor _ Lab Period _ Date Due _Lab 7 The Mean Value TheoremObjectives1. To graphically demonstrate the Mean Value Theorem. 2. To develop an understanding of the hypotheses of the Mean Value Theorem.Many times when we u
UMass Dartmouth - TEMATH - 2
Name_ Student ID # _ Instructor _ Lab Period _ Date Due _Lab 11 Approximate IntegrationObjectives1. To become familiar with the right endpoint rule, the trapezoidal rule, and Simpson's rule. 2. To compare and contrast the properties of these thre
UMass Dartmouth - TEMATH - 2
Name_ Student ID # _ Instructor _ Lab Period _ Date Due _Lab 6 The TangentObjectives1. To visualize the concept of the tangent. 2. To define the slope of the tangent line. 3. To develop a definition of the tangent line to a curve at a point.The
UMass Dartmouth - TEMATH - 2
Name_ Student ID # _ Instructor _ Lab Period _ Date Due _Lab 15 Taylor PolynomialsObjectives1. To develop an understanding for error bound, error term, and interval of convergence. 2. To visualize the convergence of the Taylor polynomials Pn (x)
UMass Dartmouth - TEMATH - 2
USE REAL-LIFE DATA TO MOTIVATE YOUR STUDENTS1 Robert E. Kowalczyk and Adam O. Hausknecht University of Massachusetts Dartmouth Mathematics Department, 285 Old Westport Road, N. Dartmouth, MA 02747-2300 rkowalczyk@umassd.edu and ahausknecht@umassd.edu
UMass Dartmouth - TEMATH - 2
VISUALIZATIONS OF VECTORS, VECTOR-VALUED FUNCTIONS, VECTOR FIELDS, AND LINE INTEGRALS Robert E. Kowalczyk and Adam O. Hausknecht University of Massachusetts Dartmouth Mathematics Department, 285 Old Westport Road, N. Dartmouth, MA 02747-2300 rkowalcz
UMass Dartmouth - TEMATH - 2
EXPLORING CALCULUS USING INNOVATIVE TECHNOLOGY Adam O. Hausknecht and Robert E. Kowalczyk University of Massachusetts Dartmouth Mathematics Department, 285 Old Westport Road, N. Dartmouth, MA 02747-2300 rkowalczyk@umassd.edu and ahausknecht@umassd.ed
UMass Dartmouth - TEMATH - 2
USING TECHNOLOGY IN AN INTEGRATED CURRICULUM PROJECT IMPULSE1 Robert E. Kowalczyk and Adam O. Hausknecht University of Massachusetts Dartmouth Mathematics Department, 285 Old Westport Road, N. Dartmouth, MA 02747-2300 rkowalczyk@umassd.edu and ahaus
UMass Dartmouth - TEMATH - 2
USING TECHNOLOGY TO IMPLEMENT CALCULUS REFORM1 Robert E. Kowalczyk and Adam O. Hausknecht University of Massachusetts Dartmouth Mathematics Department, 285 Old Westport Road, N. Dartmouth, MA 02747-2300 rkowalczyk@umassd.edu and ahausknecht@umassd.ed
UMass Dartmouth - TEMATH - 2
USING BLACK-BOX EXPERIMENTS TO DISCOVER A FORMULA FOR A FUNCTION 1 Adam O. Hausknecht and Robert E. Kowalczyk Mathematics Department, 285 Old Westport Road, N. Dartmouth, MA 02747-2300 ahausknecht@umassd.edu and rkowalczyk@umassd.edu With the widespr
UMass Dartmouth - TEMATH - 2
VISUALIZING SPECIAL FUNCTIONS AND APPLICATIONS IN CALCULUS1 Robert E. Kowalczyk and Adam O. Hausknecht University of Massachusetts Dartmouth Mathematics Department, 285 Old Westport Road, N. Dartmouth, MA 02747-2300 rkowalczyk@umassd.edu and ahauskne
UMass Dartmouth - TEMATH - 2
A MODELING EXTRAVAGANZA Robert E. Kowalczyk and Adam O. Hausknecht University of Massachusetts Dartmouth Mathematics Department, 285 Old Westport Road, N. Dartmouth, MA 02747-2300 rkowalczyk@umassd.edu and ahausknecht@umassd.edu Realistic models are
UMass Dartmouth - TEMATH - 2
USING TEMATHS VISUALIZATION TOOLS IN CALCULUS1 Robert E. Kowalczyk and Adam O. Hausknecht University of Massachusetts Dartmouth North Dartmouth, MA 02747 TEMATH (Tools for Exploring Mathematics) is a mathematics software package containing a set of e
UMass Dartmouth - TEMATH - 2
USING DIFFERENTIAL EQUATIONS TO MODEL REAL-WORLD DATA1 Robert E. Kowalczyk and Adam O. Hausknecht University of Massachusetts Dartmouth Mathematics Department, 285 Old Westport Road, N. Dartmouth, MA 02747-2300 rkowalczyk@umassd.edu and ahausknecht@u
UMass Dartmouth - TEMATH - 2
SEEING IS BELIEVING - VISUALIZING CALCULUS Adam O. Hausknecht and Robert E. Kowalczyk University of Massachusetts Dartmouth Mathematics Department, 285 Old Westport Road, N. Dartmouth, MA 02747-2300 rkowalczyk@umassd.edu and ahausknecht@umassd.edu If
UMass Dartmouth - TEMATH - 2
HOW I USE TEMATH IN MY NUMERICAL ANALYSIS COURSE1 Robert E. Kowalczyk and Adam O. Hausknecht University of Massachusetts Dartmouth North Dartmouth, MA 02747 email: rkowalczyk@umassd.edu &amp; ahausknecht@umassd.edu TEMATH (Tools for Exploring Mathematics
UMass Dartmouth - TEMATH - 2
TEMATH IS FOR MATHEMATICAL MODELING TOO!1 Adam O. Hausknecht and Robert E. Kowalczyk University of Massachusetts Dartmouth North Dartmouth, MA 02747 email: ahausknecht@umassd.edu &amp; rkowalczyk@umassd.eduIn the following, we present several examples
UMass Dartmouth - ARH - 380
Finding Images You Can Use: an Image DatabaseThe AMICO Library. This is a database of licensed images of artworks, provided and selected by the museum that owns the artwork. AMICO stands for Art Museum Image Cooperative. There are, of course, many i
UMass Dartmouth - ARH - 380
Starting Your Research: Using Reference BooksThe procedure for research I recommend is to start with a source of factual information, in this case, probably biographical information: a reference work. This will give you a little background and can o
UMass Dartmouth - ARH - 380
for Library Resource List for ARH 380Information Sources of Biographical Information:American Women Artists from Early Indian Times to the Present. Charlotte Streifer Rubinstein. Boston, G.K. Hall, 1982. Includes selected bibliography. REF N6505 R8
UMass Dartmouth - ARH - 380
And Finally: Evaluating and Using Internet ResourcesAs I mentioned at the beginning, most substantial scholarly information is published in books and journals, not on the Internet for a variety of cultural, economic, and legal reasons. This is not t
UMass Dartmouth - ARH - 380
Feminist History: Your Research Project in Feminist Art History: A Virtual LectureIntroduction:I am happy to have this opportunity to offer you this introduction to library resources you can use to research your projects. Although this is an online
UMass Dartmouth - ARH - 380
Next Step: Getting the Sources Youve IdentifiedThe next step is to determine how to get the sources you found in the reference works. If the work is a book or exhibition catalog, and you can use this library, go to the Voyager Online Catalog http:/v
UMass Dartmouth - ARH - 380
Expanding Your Search: Using Bibliographic Databases.I have made a relatively long list of databases (listed on the Resource Guide), which are available to you through the &quot;proxy server&quot; when you connect using your UMass Dartmouth e-mail address and
UMass Dartmouth - CIS - 580
Object-Oriented RequirementsTopics What are &quot;object-oriented&quot; requirements? Unified Modeling Language (UML) Modeling the problem domain UML Class diagrams Scenarios UML Use Case diagramsObject-oriented requirements Requirements are not us
UMass Dartmouth - CIS - 580
Aspect-Oriented ProgrammingSeparation of Concerns Breaking down a program into distinct parts that overlap in functionality as little as possible. All programming methodologies support some separation and of concerns, e.g. procedures, packages, c
UMass Dartmouth - CIS - 580
Architectural Designportions Ian Sommerville 1995Establishing the overall structure of a software systemObjectives To introduce architectural design and its role in the software process To describe a number of different types of architectural
UMass Dartmouth - CIS - 180
CIS 180 Object-Oriented Programming Final Examination1. (3 pts) Give the sum of the binary numbers 01011 and 01110 in: a) binary _ b) decimal _ (3 pts) Suppose that we are writing a word processing program where there are 8 different properties tha
UMass Dartmouth - CIS - 580
OO Development ProcessUML and Process UML standardizes notation, not process Increase likelihood of widespread acceptance There is significant variability in what constitutes an appropriate process depending on particular problem, staff, tools,
UMass Dartmouth - CIS - 580
IEEE TRANSACTIONS ON SOFTWARE ENGINEERING,VOL. 29,NO. 4,APRIL 2003297Empirical Analysis of CK Metrics for Object-Oriented Design Complexity: Implications for Software DefectsRamanath Subramanyam and M.S. KrishnanAbstractTo produce high qu
UMass Dartmouth - CIS - 580
Requirements Elicitation Who are the stakeholders in determining system requirements, and how does their viewpoint influence the process? How are non-technical factors such as political, social, and organizational issues taken into account? How w
UMass Dartmouth - CIS - 580
THE ETHICS OFJonathan BowenSAFETY-CRITICAL SYSTEMSThere are many practices that should be avoided in order to enhance the safety features of software systems.Plato is dear to me, but dearer still is truth. Aristotle (384322 B.C.) he use of safe
UMass Dartmouth - CIS - 552
Query Processing Overview Catalog Information for Cost Estimation Measures of Query Cost Selection Operation Sorting Join Operation Other Operations Evaluation of Expressions Transformation of Relational Expressions Choice of Evaluation Pla
UMass Dartmouth - CIS - 580
The Quality Paradigm&quot;We shall build good ships here; at a profit if we can, at a loss if we must, but always good ships.&quot; motto used at Newport News ShipbuildingQuality Paradigm Elements Defining the nature of quality Empirical approach Custom
UMass Dartmouth - CIS - 580
Formal Specification FunctionalApproaches to formal specification The system is described as a number of functions. Unnatural and complex for large systems Algebraic The system is described in terms of operations and their relationships.
UMass Dartmouth - CIS - 580
UMass Dartmouth - CISW - 3
Portfolios:the good, the bad, and the indispensableRichard UpchurchComputer and Information Science Department UMass DartmouthOutline Teaching Portfoliosand LearningTask Findingout what does and does not work to facilitate learning.Ty
UMass Dartmouth - CIS - 431
ACM S I G S O F TSoftware Engineering Notes vol 22 no 5September 1997 Page 10E v a l u a t i n g S W Eng. M e t h o d s and Tools Part 8: A n a l y s i n g a Feature Analysis Evaluation IBarbara Ann Kitchenham Department of Computer Science Un