The bond energies of
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General Chemistry: Principles and Modern Applications (11th Edition)
- Fill in the systematic names of the following chemical compounds. Note: for compounds containing hydrogen, you may give the common name instead. molecular formula name of compound Cs, C;S, BI, ВР H,0arrow_forward( ME 213: Properties of Material) Calculate the force of attraction between a K+ and an O2- ion the centers of whichare separated by a distance of 1.5 nm. My understanding is that in ionic bonds all atoms acquire stable configuration. Here potassium gives oxygen one electron. But oxygen needs two electrons to be stable. Hence it will not be stable.arrow_forward(ii) Construct and label a Born-Haber cycle for strontium difluoride, SrF2. Calculate the lattice energy of SrF2 using the following data: First electron affinity of fluoride =–328.0 kJ mol"1 First ionization energy of strontium = 549.0 kJ mol" Second ionization energy of strontium = 1064.0 kJ mol"! Enthalpy of atomization of fluoride = 75.3 kJ mol" Enthalpy of atomization of strontium = 164.0 kJ mol"! Enthalpy of formation of strontium difluoride = -1224.4 kJ mol"!arrow_forward
- (b) List some properties of Group 1 elements which indicate they are all metals. (c) What valence do all Group 1 elements exhibit in their compounds? (a) Write the names and symbols of the elements of Group 2.arrow_forwardTestosterone is an anabolic steroid. The structure of testosterone is shown below. What is the idealised bond angle at the indicated atom (ii) ? Hint: atom (iv) has been completed for you as an example. (iv) bond angle: 109.5°, geometry of the electron pairs: tetrahedral, shape of the bonds: tetrahedral ·····|||I H ····||||I ii ivarrow_forwardAn ionic compound of formula XY2 (X = cation with two positive charges, Y = anion with one negative charge) has the following mass composition: Mg 10.9%, Cl 31.8%, O57.3%. (a) What is the chemical formula and name of the compound? (b) Give the most probable Lewis structure for the ions contained in the compound.arrow_forward
- Iodine monochloride and elemental bromine have nearly the same molar mass and liquid density but very different boiling points.(a) What molecular property is primarily responsible for this difference in boiling point? What atomic property gives rise to it? Explain.(b) Which substance has a higher boiling point? Why?arrow_forwardcalculate the reaction energy of the following reactions and then determine if they are endothermic or exothermic: 3H2 + N2 => 2NH3arrow_forwardThe first two steps in the industrial synthesis of nitric acid produce nitrogen dioxide from ammonia: 4 NH; (g) + 5 0, (g) = 4 NO (g) + 6 H,0 (g) K1 2 NO (3) +0, (g) = 2NO, (g) K2 The net reaction is: 4 NH; (g) + 70, (g) = 4 NO, (g) + 6 H,0 (g) K Write an equation that gives the overall equilibrium constant K in terms of the equilibrium constants K, and K,. If you need to include any physical constants, be sure you use their standard symbols, which you'll find in the ALEKS Calculator. K = oloarrow_forward
- Butanol has the chemical formula C4H9OH. d) In the molecule of butanol, there are C-C bonds, C-H bonds, a C-O bond and a O-H bond. Order these bonds from most to least polar e) On average, would you expect C-C to have longer or shorter bonds than C-H Briefly explain your answer. f) From the reaction 2.57 L of carbon dioxide was produced and captured. Calculate the number of molecules of carbon dioxide if the temperature was 25.0 C and the pressure 1. 01 × 105 Pa. g) The empirical and molecular formula for butanol is the same. Briefly explain why.arrow_forwardMixing SbCl3 and GaCl3 in a 1;1 molar ratio (usingliquid sulfur dioxide as a solvent) gives a solid ioniccompound of empirical formula GaSbCl6. A controversyarises over whether this compound is ( ) SbCl2 + ( ) GaCl 4 - or( ) GaCl+ 2 ( ) SbCl 4 -(a) Predict the molecular structures of the two anions.(b) It is learned that the cation in the compound has abent structure. Based on this fact, which formulationis more likely to be correct?arrow_forwardFor K*-Cl ion pair, the sum of the attractive and repulsive energies depends on the distance between ions according to the equation below (E in eV per ion pair and r in nm). 1.436, 5.86 x 10-6 E = r r6 (a) derive an expression for the bonding energy E and r at equilibrium. Then calculate the (b) bond energy in kJ/mol and (c) bond length in nm for KCI.arrow_forward
- Principles of Modern ChemistryChemistryISBN:9781305079113Author:David W. Oxtoby, H. Pat Gillis, Laurie J. ButlerPublisher:Cengage LearningChemistry: The Molecular ScienceChemistryISBN:9781285199047Author:John W. Moore, Conrad L. StanitskiPublisher:Cengage LearningChemistry: Principles and PracticeChemistryISBN:9780534420123Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward MercerPublisher:Cengage Learning