Physical Chemistry
2nd Edition
ISBN: 9781133958437
Author: Ball, David W. (david Warren), BAER, Tomas
Publisher: Wadsworth Cengage Learning,
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Chapter 8, Problem 8.3E
Two small metallic bodies are given opposite charges, with the negatively charged body having twice the charge of the positively charged body. They are immersed in water (dielectric constant
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To further investigate the reactivity of silver, the student submerges a piece of metallic scandium, Sc (s), in a solution of AgNO3 (aq) and observes that the following reaction occurs.
Sc(s) + 3 AGNO3 (ag) →3 Ag(s) + Sc(NO3); (aq)
(k) Write the balanced net-ionic equation for the reaction.
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0/10000 Word Limit
(a) The electrostatic force (not energy) of attraction betweentwo oppositely charged objects is given by the equationF = k(Q1Q2>d2) where k = 8.99 x 109 N-m2/C2, Q1 andQ2 are the charges of the two objects in Coulombs, and d isthe distance separating the two objects in meters. What isthe electrostatic force of attraction (in Newtons) between anelectron and a proton that are separated by 1.00 x102 pm?(b) The force of gravity acting between two objects is givenby the equation F = G(m1m2>d2), where G is the gravitationalconstant, G = 6.674 x10-11N-m2/kg2, m1 and m2 arethe masses of the two objects, and d is the distance separatingthem. What is the gravitational force of attraction (inNewtons) between the electron and proton? (c) How manytimes larger is the electrostatic force of attraction?
What is the value of the charge?
Chapter 8 Solutions
Physical Chemistry
Ch. 8 - 8.1. What is the charge on a small sphere that is...Ch. 8 - 8.2. The force of attraction due to gravity...Ch. 8 - 8.3. Two small metallic bodies are given opposite...Ch. 8 - Prob. 8.4ECh. 8 - What is the force of attraction between a...Ch. 8 - Prob. 8.6ECh. 8 - 8.7. How much work is required to move a single...Ch. 8 - 8.8. Explain why an electromotive force is not, in...Ch. 8 - Prob. 8.9ECh. 8 - For each of the following reactions, determine the...
Ch. 8 - Prob. 8.11ECh. 8 - Prob. 8.12ECh. 8 - 8.13. Is the disproportionation reaction...Ch. 8 - Prob. 8.14ECh. 8 - Prob. 8.15ECh. 8 - Prob. 8.16ECh. 8 - Prob. 8.17ECh. 8 - 8.18. Determine and for each of the following...Ch. 8 - Prob. 8.19ECh. 8 - Prob. 8.20ECh. 8 - Prob. 8.21ECh. 8 - Prob. 8.22ECh. 8 - Prob. 8.23ECh. 8 - Prob. 8.24ECh. 8 - Prob. 8.25ECh. 8 - Prob. 8.26ECh. 8 - Prob. 8.27ECh. 8 - What is the Zn2+:Cu2+ ratio on a Daniell cell that...Ch. 8 - Prob. 8.29ECh. 8 - Determine the voltage of this reaction with the...Ch. 8 - The thermite reaction can act as the basis of an...Ch. 8 - A concentration cell has different concentrations...Ch. 8 - Prob. 8.34ECh. 8 - Prob. 8.35ECh. 8 - a What is the equilibrium constant for the...Ch. 8 - Prob. 8.37ECh. 8 - Prob. 8.38ECh. 8 - Prob. 8.39ECh. 8 - Prob. 8.40ECh. 8 - Prob. 8.41ECh. 8 - Consider the following formation reaction for HI:...Ch. 8 - Prob. 8.43ECh. 8 - 8.44. Determine an expression for , the change in...Ch. 8 - Prob. 8.45ECh. 8 - Prob. 8.46ECh. 8 - Determine the equilibrium constant for the...Ch. 8 - Prob. 8.48ECh. 8 - Prob. 8.49ECh. 8 - What is the solubility product constant of Hg2Cl2,...Ch. 8 - Prob. 8.51ECh. 8 - Prob. 8.52ECh. 8 - Prob. 8.53ECh. 8 - Prob. 8.54ECh. 8 - Prob. 8.55ECh. 8 - Prob. 8.56ECh. 8 - Prob. 8.57ECh. 8 - Show that a can be written as n+mnn+n+nn, where m...Ch. 8 - Prob. 8.59ECh. 8 - Prob. 8.60ECh. 8 - What molality of NaCl is necessary to have the...Ch. 8 - Prob. 8.62ECh. 8 - Prob. 8.63ECh. 8 - Calculate the molar enthalpy of formation of I(aq)...Ch. 8 - Prob. 8.65ECh. 8 - Hydrofluoric acid, HF(aq), is a weak acid that is...Ch. 8 - Prob. 8.68ECh. 8 - Prob. 8.69ECh. 8 - Prob. 8.70ECh. 8 - Prob. 8.71ECh. 8 - Prob. 8.72ECh. 8 - The mean activity coefficient for an aqueous...Ch. 8 - Human blood plasma is approximately 0.9NaCl. What...Ch. 8 - Under what conditions does the extended...Ch. 8 - Prob. 8.76ECh. 8 - Approximate the expected voltage for the following...Ch. 8 - Prob. 8.78ECh. 8 - Prob. 8.79ECh. 8 - Prob. 8.80ECh. 8 - a The salt NaNO3 can be thought of as...Ch. 8 - Prob. 8.82ECh. 8 - What is the estimated velocity for Cu2+ ions...Ch. 8 - Prob. 8.84ECh. 8 - Prob. 8.85ECh. 8 - Prob. 8.86ECh. 8 - Calculate a the solubility product constant for...
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- (1) A metal that gets covered with a protective film of its oxide (Al, Cu, Ag)(2) A metal which burns in air with golden flame (Zn, K, Na)(3) A metal which can displace hydrogen from boiling water as well as steam (K, Zn, Fe)arrow_forward(a) Given the ionic radii, Cst = 1.67Å, CI = 1.81Å, and the Madelung constant M(CSCI) = 1.763, determine to the best of your ability the molar Crystal energy (AEcryst) for CsCl. (b) Not given additional data, do you expect the value obtained to be larger or smaller than theoretical, and by how many percent do you anticipate to be off?arrow_forwardThe elements sodium, aluminum, and chlorine are in the same period.(a) Which has the greatest electronegativity?(b) Which of the atoms is smallest?(c) Write the Lewis structure for the simplest covalent compound that can form between aluminum and chlorine.(d) Will the oxide of each element be acidic, basic, or amphoteric?arrow_forward
- Please explain in detailarrow_forwardBoric acid, B(OH)3, is an acid that acts differently from the usual Brønsted-Lowry acids. It reacts with water according to B(OH);(aq) + 2 H,0(€)2B(OH), (aq) + H;O* (aq) K, = 5.8 × 10¬10 (a) Draw Lewis structures for B(OH); and B(OH)4. Can these be described as Lewis acids or Lewis bases? (b) Calculate the pH of a 0.20 M solution of B(OH)3(aq).arrow_forward(4) Electrons are no longer ejected from a sample of metal whenever it is illuminated by light with wavelength greater than 344nm. (a) Based on the table below, what is the most likely metal being illuminated? (b) If the sample is illuminated by light with wavelength 48.3nm, what is the stopping potential? (c) In the event this sample of metal were replaced by a metal with a smaller work function, but still illuminated with light with 48.3nm, would the kinetic energy of the ejected electrons increase or decrease? (d) What is the threshold frequency for cesium? Atom W (eV) Cesium 2.1 Calcium 2.9 Uranium 3.6 Cadmium 4.07 Lead 4.14 Niobium 4.3 Iron 4.5 Copper Cobalt 4.7 5 Gold 5.11 Platinum 6.35arrow_forward
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