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... After equilibrium was reached, the volume was increased to 2.0 liters, while the temperature was kept at 300 K. This will result in: A) an increase in Kp. B) a decrease in Kp. C) a shift in the equilibrium position to the right. D) a shift in the equilibrium position to the left. E) none of these ...
... After equilibrium was reached, the volume was increased to 2.0 liters, while the temperature was kept at 300 K. This will result in: A) an increase in Kp. B) a decrease in Kp. C) a shift in the equilibrium position to the right. D) a shift in the equilibrium position to the left. E) none of these ...
Chem12 SM Unit 5 Review final ok
... 42. (a) In P2O5, the oxidation number of O is –2 and the oxidation number of P is +5. (b) In NO2, the oxidation number of O is –2 and the oxidation number of N is +4. (c) In Na2SO4, the oxidation number of Na is +1, the oxidation number of O is –2, and the oxidation number of S is +6. (d) In Cu(NO3) ...
... 42. (a) In P2O5, the oxidation number of O is –2 and the oxidation number of P is +5. (b) In NO2, the oxidation number of O is –2 and the oxidation number of N is +4. (c) In Na2SO4, the oxidation number of Na is +1, the oxidation number of O is –2, and the oxidation number of S is +6. (d) In Cu(NO3) ...
Harvard University General Chemistry Practice Problems “The
... Ozone (O3) can be prepared in the laboratory by passing an electrical discharge through a quantity of oxygen gas (O2): 3 O2 (g) → 2 O 3 (g) An evacuated steel vessel with a volume of 10.00 liters is filled with 32.00 atm of pure O2 at 25°C. An electric discharge is passed through the vessel, causing ...
... Ozone (O3) can be prepared in the laboratory by passing an electrical discharge through a quantity of oxygen gas (O2): 3 O2 (g) → 2 O 3 (g) An evacuated steel vessel with a volume of 10.00 liters is filled with 32.00 atm of pure O2 at 25°C. An electric discharge is passed through the vessel, causing ...
chemistry - Textbooks Online
... integral values. For an elementary reaction, its order is never fractional since it is a one step process. (ii) Order of a reaction should be determined only by experiments. It cannot be predicted interms of stoichiometry of reactants and products. (iii)Simple reactions possess low values of order l ...
... integral values. For an elementary reaction, its order is never fractional since it is a one step process. (ii) Order of a reaction should be determined only by experiments. It cannot be predicted interms of stoichiometry of reactants and products. (iii)Simple reactions possess low values of order l ...
Unit 3: 1 Equilibrium and the Constant, K
... Learning objective 6.1 The student is able to, given a set of experimental observations regarding physical, chemical, biological, or environmental processes that are reversible, construct an explanation that connects the observations to the reversibility of the underlying chemical reactions or proc ...
... Learning objective 6.1 The student is able to, given a set of experimental observations regarding physical, chemical, biological, or environmental processes that are reversible, construct an explanation that connects the observations to the reversibility of the underlying chemical reactions or proc ...
The First Law of Thermodynamics Does Not Predict Spontaneous
... The term spontaneous does not mean instantaneous nor does it reveal anything about how long a process takes to occur; it means that, given enough time, the process will happen by itself. Many processes are spontaneous but slow—ripening, rusting, and aging. Can we predict the direction of a spontaneo ...
... The term spontaneous does not mean instantaneous nor does it reveal anything about how long a process takes to occur; it means that, given enough time, the process will happen by itself. Many processes are spontaneous but slow—ripening, rusting, and aging. Can we predict the direction of a spontaneo ...
apch04 test review_ans
... Station 10 – SPECTROSCOPY – Part 1 In the spectroscopy lab, we used the calorimeter and measured transmittance to determine the concentration of blue dye in a solution. Our calorimeters have three options for wavelengths: Red - 620 nm, Green - 550 nm, Blue - 470 nm. Based on the absorption spectrum ...
... Station 10 – SPECTROSCOPY – Part 1 In the spectroscopy lab, we used the calorimeter and measured transmittance to determine the concentration of blue dye in a solution. Our calorimeters have three options for wavelengths: Red - 620 nm, Green - 550 nm, Blue - 470 nm. Based on the absorption spectrum ...
IIT-JEE - Brilliant Public School Sitamarhi
... Q.12 In a cubic crystal of CsCl (density = 3.97 gm/cm3) the eight corners are occupied by Cl– ions with Cs+ ions at the centre. Calculate the distance between the neighbouring Cs+ and Cl– ions. Q.13 KF has NaCl structure. What is the distance between K+ and F– in KF if density of KF is 2.48 gm/cm3. ...
... Q.12 In a cubic crystal of CsCl (density = 3.97 gm/cm3) the eight corners are occupied by Cl– ions with Cs+ ions at the centre. Calculate the distance between the neighbouring Cs+ and Cl– ions. Q.13 KF has NaCl structure. What is the distance between K+ and F– in KF if density of KF is 2.48 gm/cm3. ...
Post Lab Questions
... should have your name, your class ID number, and a heading which includes the date, title of the assignment, and your period. Exams: will cover material presented in the current unit. Unless otherwise stated the only materials students may use to complete midterm exams are a calculator and a provide ...
... should have your name, your class ID number, and a heading which includes the date, title of the assignment, and your period. Exams: will cover material presented in the current unit. Unless otherwise stated the only materials students may use to complete midterm exams are a calculator and a provide ...
IOSR Journal of Applied Chemistry (IOSR-JAC)
... polyester fiber was assessed and fastness properties of these dyes were evaluated by applying them to polyester fiber. These dyes showed moderate anti-bacterial and anti-fungal activities. Keywords: 2-Amino-4-(3'-nitro phenyl) thiazole, chloroacetylchloride, 4-nitro aniline, dyeing performance, 1H N ...
... polyester fiber was assessed and fastness properties of these dyes were evaluated by applying them to polyester fiber. These dyes showed moderate anti-bacterial and anti-fungal activities. Keywords: 2-Amino-4-(3'-nitro phenyl) thiazole, chloroacetylchloride, 4-nitro aniline, dyeing performance, 1H N ...
Version A
... (1) Test Questions are Copyright © 1984-2002 by College Entrance Examination Board, Princeton, NJ. All rights reserved. For face-to-face teaching purposes, classroom teachers are permitted to reproduce the questions. Web or Mass distribution prohibited. (2) AP® is a registered trademark of the Colle ...
... (1) Test Questions are Copyright © 1984-2002 by College Entrance Examination Board, Princeton, NJ. All rights reserved. For face-to-face teaching purposes, classroom teachers are permitted to reproduce the questions. Web or Mass distribution prohibited. (2) AP® is a registered trademark of the Colle ...
CHEM 1412. Chapter 15. Chemical Equilibrium (Homework)
... 2. The equilibrium constant expression for the reaction 2BrF5 (g) + 5F2 (g) is A. Kc = [Br2] [F2] / [BrF5] B. Kc = [Br2] [F2]5 / [BrF5]2 C. Kc = [Br2] [F2]2 / [BrF5]5 D. Kc = [BrF5]2 / [Br2][F2]5 E. Kc = 2[BrF5]2 / ([Br2] × 5[F2]5) ...
... 2. The equilibrium constant expression for the reaction 2BrF5 (g) + 5F2 (g) is A. Kc = [Br2] [F2] / [BrF5] B. Kc = [Br2] [F2]5 / [BrF5]2 C. Kc = [Br2] [F2]2 / [BrF5]5 D. Kc = [BrF5]2 / [Br2][F2]5 E. Kc = 2[BrF5]2 / ([Br2] × 5[F2]5) ...
Chemistry: An Introduction for Medical and Health Sciences - E
... year, thousands of plant samples are collected by drug companies to find out whether they have any anti-disease activity. Many of them do. In the mean time, we continue to destroy the rain forests just to obtain teak furniture or some extra peanuts, but that is another story. This area of research is ...
... year, thousands of plant samples are collected by drug companies to find out whether they have any anti-disease activity. Many of them do. In the mean time, we continue to destroy the rain forests just to obtain teak furniture or some extra peanuts, but that is another story. This area of research is ...
Spring 2008
... Ionic bonding results from the transfer of electrons from one atom to another. B. Dipole moments result from the unequal distribution of electrons in a molecule. C. Linear molecules cannot have a net dipole moment. D. The electrons in a polar bond are found nearer to the more electronegative element ...
... Ionic bonding results from the transfer of electrons from one atom to another. B. Dipole moments result from the unequal distribution of electrons in a molecule. C. Linear molecules cannot have a net dipole moment. D. The electrons in a polar bond are found nearer to the more electronegative element ...
The SimSoup Guide - Chris Gordon
... Molecular structure and the way molecules react are both determined according to physical laws. The number of possible molecular species is vast, as is the number of possible reactions. There is an effectively infinite network of possible molecular species and reactions that is determined for all ti ...
... Molecular structure and the way molecules react are both determined according to physical laws. The number of possible molecular species is vast, as is the number of possible reactions. There is an effectively infinite network of possible molecular species and reactions that is determined for all ti ...
Isopropanol oxidation by pure metal oxide
... exhibited high activity. An XPS analysis was carried out to determine surface impurities. The XPS analysis of CuO revealed the surface to be primarily CuO with traces of C and N. The surface of Ag2 O was mostly Ag2 O with traces of C and Na. XPS analysis of the Au2 O3 revealed the surface to be most ...
... exhibited high activity. An XPS analysis was carried out to determine surface impurities. The XPS analysis of CuO revealed the surface to be primarily CuO with traces of C and N. The surface of Ag2 O was mostly Ag2 O with traces of C and Na. XPS analysis of the Au2 O3 revealed the surface to be most ...
Modified ketone resin as an epoxy resin curing agent
... contents and NH2 group determination (Table – 2) are indicates that, around two NH2 groups are present per repeat unit of HCHF. The inspection of IR spectra of HCHF reveals that, all the IR spectra comprised the spectral features of CHF chain and additional of aromatic and hydrazinic groups. The onl ...
... contents and NH2 group determination (Table – 2) are indicates that, around two NH2 groups are present per repeat unit of HCHF. The inspection of IR spectra of HCHF reveals that, all the IR spectra comprised the spectral features of CHF chain and additional of aromatic and hydrazinic groups. The onl ...
Ch. 18 Class PowerPoint
... are mixed, almost all of the Ag+ ions and Cl− ions combine and separate from the solution as a precipitate of AgCl. • AgCl is only very sparingly soluble in water. • The reaction thus effectively goes to completion because an essentially insoluble product is formed. Copyright © by Holt, Rinehart and ...
... are mixed, almost all of the Ag+ ions and Cl− ions combine and separate from the solution as a precipitate of AgCl. • AgCl is only very sparingly soluble in water. • The reaction thus effectively goes to completion because an essentially insoluble product is formed. Copyright © by Holt, Rinehart and ...
Document
... The __________________________________ is calculated by substituting the initial concentrations of the reactants and products into the equilibrium constant (Kc) expression. ...
... The __________________________________ is calculated by substituting the initial concentrations of the reactants and products into the equilibrium constant (Kc) expression. ...
theodore l. brown h. eugene lemay, jr. bruce e. bursten catherine j
... Copyright © 2012, 2009, 2006, 2003, 2000, 1997, 1994, 1991, 1988, 1985, 1981, 1977 Pearson Education, Inc., publishing as Pearson Prentice Hall. All rights reserved. Manufactured in the United States of America. This publication is protected by Copyright and permission should be obtained from the pu ...
... Copyright © 2012, 2009, 2006, 2003, 2000, 1997, 1994, 1991, 1988, 1985, 1981, 1977 Pearson Education, Inc., publishing as Pearson Prentice Hall. All rights reserved. Manufactured in the United States of America. This publication is protected by Copyright and permission should be obtained from the pu ...
Liquid chromatography: a tool for the analysis of metal species
... different selectivity, reduced problems for metal ion hydrolysis and can be applied to complex sample matrices. Notwithstanding the fact that many organic acids (from mono-, di-, tricarboxylic acids to chelating agents such as a-hydroxyisobutyric acid, tartaric, citric, oxalic, pyridine-2,6-dicarbox ...
... different selectivity, reduced problems for metal ion hydrolysis and can be applied to complex sample matrices. Notwithstanding the fact that many organic acids (from mono-, di-, tricarboxylic acids to chelating agents such as a-hydroxyisobutyric acid, tartaric, citric, oxalic, pyridine-2,6-dicarbox ...
Stoichiometry: Calculations with Chemical Formulas and Equations
... reactant, N2 and H2, available in a reaction. Thus, this is a limiting reactant problem. Plan If we assume that one reactant is completely consumed, we can calculate how much of the second reactant is needed in the reaction. By comparing the calculated quantity with the available amount, we can dete ...
... reactant, N2 and H2, available in a reaction. Thus, this is a limiting reactant problem. Plan If we assume that one reactant is completely consumed, we can calculate how much of the second reactant is needed in the reaction. By comparing the calculated quantity with the available amount, we can dete ...
Lewis acid catalysis
In Lewis acid catalysis of organic reactions, a metal-based Lewis acid acts as an electron pair acceptor to increase the reactivity of a substrate. Common Lewis acid catalysts are based on main group metals such as aluminum, boron, silicon, and tin, as well as many early (titanium, zirconium) and late (iron, copper, zinc) d-block metals. The metal atom forms an adduct with a lone-pair bearing electronegative atom in the substrate, such as oxygen (both sp2 or sp3), nitrogen, sulfur, and halogens. The complexation has partial charge-transfer character and makes the lone-pair donor effectively more electronegative, activating the substrate toward nucleophilic attack, heterolytic bond cleavage, or cycloaddition with 1,3-dienes and 1,3-dipoles.Many classical reactions involving carbon–carbon or carbon–heteroatom bond formation can be catalyzed by Lewis acids. Examples include the Friedel-Crafts reaction, the aldol reaction, and various pericyclic processes that proceed slowly at room temperature, such as the Diels-Alder reaction and the ene reaction. In addition to accelerating the reactions, Lewis acid catalysts are able to impose regioselectivity and stereoselectivity in many cases.Early developments in Lewis acid reagents focused on easily available compounds such as TiCl4, BF3, SnCl4, and AlCl3. The relative strengths of these (and other) Lewis acids may be estimated from NMR spectroscopy by the Childs method or the Gutmann-Beckett method. Over the years, versatile catalysts bearing ligands designed for specific applications have facilitated improvement in both reactivity and selectivity of Lewis acid-catalyzed reactions. More recently, Lewis acid catalysts with chiral ligands have become an important class of tools for asymmetric catalysis.Challenges in the development of Lewis acid catalysis include inefficient catalyst turnover (caused by catalyst affinity for the product) and the frequent requirement of two-point binding for stereoselectivity, which often necessitates the use of auxiliary groups.