The small number after the element symbol is called the subscript and this tells us how many of that atom are in the compound. . Solution for 3. 1 mole is equal to 1 moles KMnO4, or 158.033949 grams. 1 How many atoms of potassium are in KMnO4? If the formula used in calculating molar mass is the molecular formula, the formula weight computed is the molecular weight. Outline the steps necessary to answer the question There is only one Ca atom.Finally, if you are asked to find the number of atoms in one mole, for example, the number of H atoms in one mole of H2O, you multiply the number of atoms by Avogadros number. 3 How do you calculate potassium permanganate? . There are 6.022 1023 atoms of potassium in every mole of potassium. Balanced equation: 2 Al (OH)3 + 3 H2SO4 Al2 (SO4)3 + 6 H2O NOTICE: There are 2 Al, 18 O, 12 H, and 3 S atoms on each side of the equation. monohydroxy phenols do not yield stable products but dihydroxyl phenols can be oxidized to quinones How to perform the test: Three drops of the compound to be tested are dissolved in 2 ml of water or aqueous ethanol. How atoms of oxygen are in C7HsN3O6? The Mn atom participates in redox reactions, and it has an initial oxidation state of 7+. Find the mass of iron in sample and the percent iron in sample. When calculating molecular weight of a chemical compound, it tells us how many grams are in one mole of that substance. of the solution (in liters) by the concentr, Calculate the mass of ethylene glycol (C2H6O2) needed t, volume of the solution (in liters) by the concentr. Use this page to learn how to convert between moles Potassium Permanganate and gram. We are NOT chemists, but Math nuts!!!!. How to find the oxidation number for MN in KMnO4? The LibreTexts libraries arePowered by NICE CXone Expertand are supported by the Department of Education Open Textbook Pilot Project, the UC Davis Office of the Provost, the UC Davis Library, the California State University Affordable Learning Solutions Program, and Merlot. Potassium permanganate oxidizes aldehydes to carboxylic acids, such as the conversion of n-heptanal to heptanoic acid: 5 C6H13CHO + 2 KMnO4 + 3 H2SO4 5 C6H13COOH + 3 H2O + K2SO4 + 2 MnSO. Examples of carbons that are not oxidized. . 5 More answers below Trevor Hodgson The SI base unit for amount of substance is the mole. Are you related to Sorasyn? If you have 7.46 x 1023 molecules of KNO3, how many moles do you have? 6 How to calculate the molar mass of potassium dichromate? Although overoxidation is less of a problem with secondary alcohols, KMnO4 is still not considered generally well-suited for conversions of alcohols to aldehydes or ketones. Oxidation number of K +4 4 (oxidation number of oxygen) + oxidation . Mass of KMnO4 At the time, its main use was in photography since its staining potential can be used in the development of slides. What is the formula of potassium permanganate? We write the oxidation number (O.N.) Other uncategorized cookies are those that are being analyzed and have not been classified into a category as yet. = amount of KMnO4 x Molecular mass of KMnO4 d-Calculate the mass in grams of one calcium atom. O = (4 2) 8 atoms. The cookie is used to store the user consent for the cookies in the category "Other. Consider this question: What is the molarity of KMnO4 in a solution of 0.0908g of KMnO4 in 0.500L of solution? . Why SJF Cannot be implemented practically? ANSWER:- we know that atomic mass of Si atom is 28.08 from periodic table and one mole of Si atom is 6.023 * 10 23 (Avagadro's number) atoms of Si that is,. Molecular weight of KMnO4 is [39+65+(164)]= 158grams. Advertisement cookies are used to provide visitors with relevant ads and marketing campaigns. ---------------------------------------------------- Determine the percent composition of KMnO4. mol/L = 0 mol. Enter the email address you signed up with and we'll email you a reset link. { Oxidation_of_Organic_Molecules_by_KMnO4 : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()" }, { Addition_Reactions : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", Chan_Rearrangement : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", Elimination_Reactions : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", Free_Radical_Reactions : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", Introduction_to_Bioconjugation : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", Keck_Asymmetric_Allylation : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", Named_Reactions : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", Organic_Reactions : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", Oxidation_and_Reduction_Reactions : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", Pericyclic_Reactions : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", Reaction_Fundamentals : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", Reactivity : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", Reactivity_of_Alpha_Hydrogens : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", Rearrangement_Reactions : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", Substitution_Reactions : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "Zimmerman-Traxler_Model" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()" }, [ "article:topic", "showtoc:no", "license:ccbyncsa", "licenseversion:40" ], https://chem.libretexts.org/@app/auth/3/login?returnto=https%3A%2F%2Fchem.libretexts.org%2FBookshelves%2FOrganic_Chemistry%2FSupplemental_Modules_(Organic_Chemistry)%2FReactions%2FOxidation_and_Reduction_Reactions%2FOxidation_of_Organic_Molecules_by_KMnO4, \( \newcommand{\vecs}[1]{\overset { \scriptstyle \rightharpoonup} {\mathbf{#1}}}\) \( \newcommand{\vecd}[1]{\overset{-\!-\!\rightharpoonup}{\vphantom{a}\smash{#1}}} \)\(\newcommand{\id}{\mathrm{id}}\) \( \newcommand{\Span}{\mathrm{span}}\) \( \newcommand{\kernel}{\mathrm{null}\,}\) \( \newcommand{\range}{\mathrm{range}\,}\) \( \newcommand{\RealPart}{\mathrm{Re}}\) \( \newcommand{\ImaginaryPart}{\mathrm{Im}}\) \( \newcommand{\Argument}{\mathrm{Arg}}\) \( \newcommand{\norm}[1]{\| #1 \|}\) \( \newcommand{\inner}[2]{\langle #1, #2 \rangle}\) \( \newcommand{\Span}{\mathrm{span}}\) \(\newcommand{\id}{\mathrm{id}}\) \( \newcommand{\Span}{\mathrm{span}}\) \( \newcommand{\kernel}{\mathrm{null}\,}\) \( \newcommand{\range}{\mathrm{range}\,}\) \( \newcommand{\RealPart}{\mathrm{Re}}\) \( \newcommand{\ImaginaryPart}{\mathrm{Im}}\) \( \newcommand{\Argument}{\mathrm{Arg}}\) \( \newcommand{\norm}[1]{\| #1 \|}\) \( \newcommand{\inner}[2]{\langle #1, #2 \rangle}\) \( \newcommand{\Span}{\mathrm{span}}\)\(\newcommand{\AA}{\unicode[.8,0]{x212B}}\), The half-reaction and oxidation potential, General Reactivity with Organic Molecules, Reactions with Specific Functional Groups, http://www.epa.gov/ogwdw/mdbp/pdf/alter/chapt_5.pdf, http://www.masterorganicchemistry.coboxylic-acids/, status page at https://status.libretexts.org, Carbon atoms with weak C-H bonds, such as, C-H bonds in the alpha-positions of substituted, C-H bonds in carbon atoms containing C-O bonds, including, Carbons with exceptionally weak C-C bonds such as, C-C bonds next to an aromatic ring AND an oxygen, Aliphatic carbons (except those alpha to an aromatic ring, as above), Aromatic carbons (except phenol, as above), Carbons without a C-H bond, except as in (3) above, Abiko, Atsushi; Roberts, John C.; Takemasa, Toshiro; Masamune, Satoru, Tetrahedron Letters (1986), 27(38), 4537-40. The molar mass of KMnO 4 is 158.034 g mol - 1. Multiply the number of atoms by the atomic weight of each element found in steps 1 and 2 to get the mass of each element: Mass (g/mol) K (Potassium) 1 39.0983 = 39.0983. of all the atoms in the compound: K (39 g/mol) + Mn (54 g/mol) + 4O The deep purple color of potassium permanganate is caused by the movement of an electron to a vacant d-orbital in the manganese atom. Given 4.91 x 10 22 formula units of CuSO 4, how many grams is this? If you have a 100 g sample of KMnO4, how many molecules of KMnO4are in the sample? Should you consider anything before you answer a question. The colour of KMnO4 is due to transitions of charge transfer by the absorption of visible light. For example, in H2O we have only one Oxygen atom since there isnt a number after the O.If there is a number in front of the compound (its called a coefficient), like 2H2O that means we have two separate molecules. 75 g KMnO4 = molecules KMnO4 B. When this dissociates in water, the K separates from the There is only one Ca atom.Finally, if you are asked to find the number of atoms in one mole, for example, the number of H atoms in one mole of H2O, you multiply the number of atoms by Avogadros number. When reduced by another chemical, it loses its distinctive pink-purple color and becomes colorless. As a result, the total oxidation number of all atoms in KMnO4 equals zero. Solution for Sucrose has the molecular formula If a sucrose sample C12H22O11. 5 What kind of compound is KMnO4 potassium permanganate? (OH263-? For example, in H2O we have only one Oxygen atom since there isnt a number after the O.If there is a number in front of the compound (its called a coefficient), like 2H2O that means we have two separate molecules. The atomic weights used on this site come from NIST, the National Institute of Standards and Technology. STEP 1: Write the correct formula STEP 2: Determine the molar mass STEP 3: Use dimensional analysis to convert 1024 10) How many carbon atoms are there in 52.06 g of . The word potassium stems from the English pot ash, which was used to isolate potassium salts. You also have the option to opt-out of these cookies. C-H bonds in carbon atoms containing C-O bonds, including alcohols and aldehydes. Primary alcohols such as octan-1-ol can be oxidized efficiently by KMnO4, in the presence of basic copper salts.3 However, the product is predominantly octanoic acid, with only a small amount of aldehyde, resulting from overoxidation. It's a word that represents an amount or a number, Which contains more atoms, a mole of copper or a mole of gold? It is used commercially primarily due to its color and oxidative potency. And thus in a 15mol quantity there are approx. You are right about the not a chemist part . It is a common oxidizing agent often used in titrations due to its color and redox potential. You can view more details on each measurement unit: molecular weight of KMnO4 or mol This compound is also known as Potassium Permanganate. What is the difference between HSI and Hscei? contains 5.0 x 1022 atoms of carbon, how many molecules of sucrose are present in . pdf, EMT Basic Final Exam Study Guide - Google Docs, Test Bank Chapter 01 An Overview of Marketing, NHA CCMA Practice Test Questions and Answers, Sample solutions Solution Notebook 1 CSE6040, CHEM111G - Lab Report for Density Experiment (Experiment 1), Leadership class , week 3 executive summary, I am doing my essay on the Ted Talk titaled How One Photo Captured a Humanitie Crisis https, School-Plan - School Plan of San Juan Integrated School, SEC-502-RS-Dispositions Self-Assessment Survey T3 (1), Techniques DE Separation ET Analyse EN Biochimi 1, Laboratory Methods in Organic Chemistry (Chem 347). In this case we would have two N atoms and six O atoms. Both the same number on the periodic table, you just need to change the units. I was exposed to contagious dumbness. Guest Jan 14, 2016 5 Answers #1 +5 Best Answer 1024 E) 184. The The percentage by weight of any atom or group of atoms in a compound can be computed by dividing the total weight of the atom (or group of atoms) in the formula by the formula weight and multiplying by 100. How many grams of glucose (C6H12O6) are present in 500 mL of a 0 M glucose and the density of ethylene glycol (1.11 g/mL): 0.5 L x 0.2 x 1.11 g/mL = 0.111 g. number of moles by the molar mass of glucose (180.16 g/mol): 0.1 mol x 180.16, Calculate the volume of 0.1 M HNO3 solution r, Business Law: Text and Cases (Kenneth W. Clarkson; Roger LeRoy Miller; Frank B. This is an ionic compound consisting of a +1 potassium cation How many atoms are present in 175 g of element (b)? This cookie is set by GDPR Cookie Consent plugin. Both the same number on the periodic table, you just need to change the units (g/mol -vs- amu) Given 12 g of aluminum, how many moles do you have? Given 125 g ofH2SO4, how many moles do you have? Since the reaction between NaOH and HNO3 is 1:1, the How many moles of HCl are present in 500 mL of 0.1 M HCl solution? Alkanes are called saturated hydrocarbons because each carbon is bonded with as many hydrogen atoms as possible. The mass of glucose can be calculated by multiplying the Answer: The molar mass of KMnO4 is calculated by adding the atomic masses of all the atoms in the compound: K (39 g/mol) + Mn (54 g/mol) + 4O (4x16 g/mol) = 158 g/mol. With addition of heat and/or more concentrated KMnO4, the glycol can be further oxidized, cleaving the C-C bond. To complete this calculation, you have to know what substance you are trying to convert. with water. How many grams are in a molecule of KMnO4? These cookies track visitors across websites and collect information to provide customized ads. Each has a single positive and single negative charge, respectively. Molar mass of KMnO4 = 158.034 g/mol In the molecule of KMnO4 there are 4 atom O 1 mole of KMnO4 ~ 4 mol of O Mol of O = (4 x 16 g/mol)/158.034 g/mol = 0.405 mol of O ~ x 0.405 mol of KMnO4 = 0.1 mol of KMnO4. Since one mole of KOH contains one mole of K, the answer is 6.0221023 atoms of K. The answer is 158. You have to check this for accuracy!!!. 39.0983 + 54.938049 + 15.9994*4. O (Oxygen) However, if there is at least one hydrogen, the oxidation proceeds all the way to the carboxylic acid. If you have 1.6 x 1028 atoms of Zn, how much would it weigh? Any alkali metal molecule has an oxidation number of (+1). This figure is obtained by adding the individual molar masses of four oxygen atoms, one manganese atom and one potassium atom, all available on the Periodic Table of the Elements (see the Additional Resources section). for elements that we know and use these to figure out oxidation number for Mn. Alkyl-substituted rings can be coverted to poly-acids, which can be distinguished on the basis of their pKas. These cookies ensure basic functionalities and security features of the website, anonymously. 1022 D) 1.59. 12. a-How many atoms are contained in 28.0 grams of nitrogen? Given 0.345 mol of water, how many grams would you Instead of bis-hydroxylation that occurs with alkenes, permanganate oxidation of alkynes initially leads to the formation of diones. Calculate the molar mass of potassium permanganate (KMnO4). The crystal structure of solid KMnO4 is orthorhombic. The Mn atom participates in redox reactions, and it has an initial oxidation state of 7+. However, you may visit "Cookie Settings" to provide a controlled consent. Out of these, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. Another reaction that alkenes undergo is oxidation. Is kmno4 an acid or base? For example, H2 means there are two Hydrogen atoms.When there is no number after an element, we assume there to be one atom of that element. Exercise's 1 No of moles of sodium atoms = 2x6- 75 = 13.5 No of modes of sulphur atoms = 1X6. The SI base unit for amount of substance is the mole. What is the load current when the triac is conducted? The transition occurs when the chemical is in the presence of light. Whether you need help solving quadratic equations, inspiration for the upcoming science fair or the latest update on a major storm, Sciencing is here to help. In other words, the mole fraction of O is 1/6, the mole fraction of Mn is 1/6, and the mole fraction of O is 2/3. Show your work. Problem #4: Suppose we knew that there were 8.170 x 10 20 atoms of O in an unknown sample of KMnO 4. . g/mol = 18 g. Answer: The number of moles of NaOH can be calculated by multiplying the Necessary cookies are absolutely essential for the website to function properly. The some is and for The reason is that the molar mass of the substance affects the conversion. set-up. Use dimensional analysis to calculate the number of O atoms in 1.4238 mol KMnO4. The cookies is used to store the user consent for the cookies in the category "Necessary". mass of 1 atom / 1 atom = mass of a mole of atoms / 6.022 x 10 23 atoms. Molecular mass of KMnO4 = 39.1 + 54.9 + 4(16.0) = 158.0 Alkanes are called saturated hydrocarbons because each carbon is bonded with as many hydrogen atoms. Correct answer - What changes in color occur when bromine and kmno4 reacts with an alkene? 50 mL. or give one molecule In chemistry, the formula weight is a quantity computed by multiplying the atomic weight (in atomic mass units) of each element in a chemical formula by the number of atoms of that element present in the formula, then adding all of these products together. 2 How many oxygen atoms are in 225 g of KMnO4? By performing the necessary multiplications, the calculation is given as Al atoms =2 x1, S atoms = 3 x1 and O atoms = 3 x 4. Where should I start working out out of shape? (oxygen is 0 mol. And the n -factor of H C l is 1. So, in 1 mol of O = (1/0.405 mol) x 0.1 mol of KMnO4 = 0.25 mol of KMnO4. A cyclic manganese diester is an intermediate in these oxidations, which results in glycols formed by syn addition. 1 CHE101 - Summary Chemistry: The Central Science, Dr. Yost - Exam 1 Lecture Notes - Chapter 18, 1.1 Functions and Continuity full solutions. 75 = 27 2 1 mol of Nacl contains 6-022* 10' 3 Formula units : 2. In permanganate anion (MnO4-) the manganese atom is bonded with four oxygen atoms through three double bonds and one single bond. What are 6 of Charles Dickens classic novels? The small number after the element symbol is called the subscript and this tells us how many of that atom are in the compound. Its not that it would present a problem generally . 2!is!the!subscript . 9.23 x 1023 Au atoms = moles Au 125 g H3PO4 = molecules H3PO4 E. 0.75 moles CO2 = total atoms E. 0.75 moles CO2 = I total atoms This problem has been solved! Therefore, alcohols will be oxidized to carbonyls (aldehydes and ketones), and aldehydes (and some ketones, as in (3) above) will be oxidized to carboxylic acids. Of course many on here do, so its not really definitive, its just a birds of a feather kind of relation. How many atoms of oxygen are there in 8.43 g of KMnO 4 4? and the density of ethylene glycol (1 g/mL): 0 L x 0 x 1 g/mL = 0 g. Answer: The number of moles of glucose can be calculated by multiplying the Carbon atoms with bonds, as in alkenes and alkynes. Calculate the molar mass of potassium permanganate (KMnO4). number of moles by the molar mass of glucose (180 g/mol): 0 mol x 180. Based on the size of the atoms, do you expect the atomic masses of elements (a) and (c) to be greater than or less than (b)? Using the principles above, we expect KMno4 to react with alkenes, alkynes, alcohols, aldehydes and aromatic side chains. 1 K ( Potassium ) 1 Mn (Manganese) 4 O ( Oxygen ) This is an ionic compound consisting of a +1 potassium cation and a -1 permanganate. Q: A Redox Titration Is Performed To Determine The Concentration Of A Potassium Permanganate Solution (KMnO4) Using Sodium Oxalate (Na2C20.) It is, however, capable of further oxidizing the glycol with cleavage of the carbon-carbon bond, so careful control of the reaction conditions is necessary. Potassium permanganate was discovered in 1659. common chemical compounds. Under mild conditions, potassium permanganate can effect conversion of alkenes to glycols. (w/v) solution. Mn (Manganese) 1 54.938045 = 54.938045. (ex:!In!3H 2O,!the! C-H bonds in the alpha-positions of substituted aromatic rings. KMnO 4 is able to oxidize carbon atoms if they contain sufficiently weak bonds, including Carbon atoms with bonds, as in alkenes and alkynes Carbon atoms with weak C-H bonds, such as C-H bonds in the alpha-positions of substituted aromatic rings C-H bonds in carbon atoms containing C-O bonds, including alcohols and aldehydes Finding molar mass starts with units of grams per mole (g/mol). Potassium permanganate has the chemical formula KMnO4, where the "4" is a subscript below oxygen. By clicking Accept All, you consent to the use of ALL the cookies. The potassium ion in KMnO4 has a permanent oxidation state of 1+, and the oxygen atoms each have a permanent oxidation state of 2-. The formula weight is simply the weight in atomic mass units of all the atoms in a given formula. The chemical KMnO4 is a neutral one. 91024 hydrogen atoms . Was this answer helpful? Notes: Note that in example 2 the extra carbons are cleaved to give the same product as in example 1. This compound is also known as Potassium Permanganate. Potassium permanganate will not react with alkanes since they are saturated. Chemistry 8 Lesson 6: Elements and Compounds - Molecules prepared by Le Hong Phong High School hopes to provide useful documents to help students master the Becker is pursuing a Bachelor of Science in microbiology, immunology and molecular genetics at the University of California-Los Angeles. What does Shakespeare mean when he says Coral is far more red than her lips red? The equations representing oxidation in these media are In acidic medium 2KMnO 4 + H 2 SO 4 K 2 SO 4 + 2MnSO 4 + 3H 2 O + 5 [O] MnO 4- + 8H + + 5e - Mn 2+ + 4H 2 O In neutral or alkaline medium Scott Becker began writing professionally in 2008. 2.50 moles of potassium permanganate (KMnO4) contains (2.50*4 =) 10 moles of oxygen. 7.23 x 1024 Al atoms = grams Al C. 9.23 x 1023 Au atoms = moles Au D. 0.75 moles CO2 = _total atoms Show transcribed image text Expert Answer 100% (2 ratings) Transcribed image text: 3. Calculate the volume of 0 M HNO3 solution required to neutralize 25 mL of 0 M Indications of a positive test: I assume you means for 1 molecule. Potassium permanganate is an ionic compound consisting of a potassium cation (K+) and permanganate anion (MnO4-). Copyright 2023 StudeerSnel B.V., Keizersgracht 424, 1016 GC Amsterdam, KVK: 56829787, BTW: NL852321363B01, of all the atoms in the compound: K (39.10 g/mol) + Mn (54.94 g/mol) + 4O. = 0.102000 moles of manganese atoms Exhaustive oxidation of organic molecules by KMnO4 will proceed until the formation of carboxylic acids. How many sodium ions are in 3.0 moles of NaCl? We are NOT chemists, but Math nuts!!!!. n-factor is defined as the number of H + ions replaced by 1 mole of acid in a reaction. Potassium permanganate has a molar mass of 158.04 g/mol. KMnO4 molecular weight Molar mass of KMnO4 = 158.033949 g/mol This compound is also known as Potassium Permanganate. (write down how much each one weighs), = Mass of 1 mol (6.02 x 10 23) of a substance (g/mol). A) 19.0 B) 2.64 98.37. The formula indicates that there is 1 mole K, 1 mole Mn, and 4 moles O per mole of KMnO4. This site explains how to find molar mass. and a -1 permanganate (polyatomic) anion (MnO4) We are mostly made up of water. We therefore we multiple the subscript for each element by the number in front. K2MnO4, Given 14.05 g of SO 2, how many molecules is this? : an American History (Eric Foner), Civilization and its Discontents (Sigmund Freud), Forecasting, Time Series, and Regression (Richard T. O'Connell; Anne B. Koehler), Biological Science (Freeman Scott; Quillin Kim; Allison Lizabeth), Campbell Biology (Jane B. Reece; Lisa A. Urry; Michael L. Cain; Steven A. Wasserman; Peter V. Minorsky), Chemistry: The Central Science (Theodore E. Brown; H. Eugene H LeMay; Bruce E. Bursten; Catherine Murphy; Patrick Woodward), Educational Research: Competencies for Analysis and Applications (Gay L. 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