HowManysignalsdo you expect in HNMRA) 2B) 3c)4D) 5

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Chemistry: An Atoms First Approach

2nd Edition

ISBN:9781305079243

Author:Steven S. Zumdahl, Susan A. Zumdahl

Publisher:Steven S. Zumdahl, Susan A. Zumdahl

Chapter16: Spontaneity, Entropy, And Free Energy

Section: Chapter Questions

Problem 103CP: For the following reactions at constant pressure, predict if HE,HE,orH=E a. 2HF(g)H2(g)+F2(g) b....

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5 ml of a 0.2 M NH3 solution are added to 5 ml of a 0.1 M NH4Cl solution (Kb for NH3 is = 1.8 × 10-5). Calculate: a) the pH of the resulting solution; b) the ΔpH due to the addition of 5 ml of a 0.01 M HNO3 solution to the solution resulting from part a); c) the ΔpH due to the addition of 10 ml of water to the solution resulting from part a)
14.58 Complete and balance the following oxidation-reduction reactions, assuming they occur in acidic solution. (a) C20; (aq)+MnO,(aq)' CO(g)+Mn²*(aq) (b) CIO3(aq)+CI¯(aq) Cl2(aq) (c) S20;(aq)+I½(a) so; (ag)+I¬(aq)
For the following reactions at constant pressure, predict if HE,HE,orH=E a. 2HF(g)H2(g)+F2(g) b. N2(g)+3H2(g)2NH3(g) c. 4NH3(g)+5O2(g)4NO(g)+6H2O(g)
(f) Potassium permanganate (g) Sodium hypochlorite (h) Beryllium bicarbonate (1) Ammonium dichromate (G) Iron (II) chloride
1. Consider the following reaction and thermodynamic data. Compound AH;° (kJ/mol) (J/mol·K) 3 Ni(s) + N:(g) +3 H:O(g) 3 NiO(s) + 2 NH(g) NIO (s) -239.7 38.0 Ni (s) 29.9 a) Calculate AH° for the reaction. NH3 (g) -46.0 192.5 b) Calculate AS° for the reaction. N2 (g) 191.5 c) Determine the standard free energy for the reaction at 25 °C. H20 (g) -241.8 188.7 d) Determine the value of the equilibrium constant at 25 °C. e) Estimate the temperature at which this reaction would be at equilibrium (assuming that enthalpy and entropy are independent of temperature).
In a solution of 0.015 mol L-1 HBr(aq) at 25 °C (a) What are the concentrations of the hydronium, H3O+, and hydroxide, OH-, ions? (b) What is the pH of the solution?
Which of the following elements has the highest ionization potential? (a) Ba (b) Mg (c) Zn (d) Cl (e) F
. For each of the following, draw the Lewis structure, predict the ONO bond angle, and give the hybridization of the nitrogen. You may wish to review the chapters on chemical bonding and advanced theories of covalent bonding for relevant examples. (a) NO2 (b) NO-2

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How Many signals do you expect in HNMR A) 2 B) 3 c)4 D) 5