Principles of Modern Chemistry
8th Edition
ISBN: 9781305079113
Author: David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Publisher: Cengage Learning
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Chapter 1, Problem 38AP
In a reproduction of the Millikan oil-drop experiment, a student obtains the following values for the charges on nine different oil droplets.
(a) Based on these data alone, what is your best estimate of the number of electrons on each of the above droplets? (Hint: Begin by considering differences in charges between adjacent data points, and see into what groups these are categorized.)
(b) Based on these data alone, what is your best estimate of the charge on the electron?
(c) Is it conceivable that the actual charge is half the charge you calculated in (b)? What evidence would help you decide one way or the other?
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Directions: Given the following reaction and the stress applied in each
reaction, answer the question below.
A. H2(g) + Cl2(g) 2 HCl(g)
Stress applied: Decreasing the pressure
1. What is the Keq expression?
2. What will be the effect in the number of moles of HCl(g)?
3. What will be the Equilibrium Shift or the reaction?
B.
Fe3O4(s) + 4 H2(g) + heat 53 Fe(s) + 4 H₂O(g)
Stress applied: Increasing the temperature
1. What is the Keq expression?.
2. What will be the effect in the volume of water vapor collected?
3. What will be the Equilibrium Shift or the reaction?
C. 4 NH3(g) + 5 O2(g) 4 NO(g) + 6 H2O(g) + heat
Stress applied: Increasing the volume of the container
1. What is the Keq expression?.
2. What will be the effect in the amount of H₂O?
3. What will be the Equilibrium Shift or the reaction?
Consider the solubility products (Ksp values) for the following compounds:SrSO4 (Ksp = 7.6 x 10−7), BaSO4 (Ksp = 1.5 x 10−9), SrCO3 (Ksp = 7.0 x 10−10), BaCO3 (Ksp = 1.6 x 10−9)Which anion is the harder base, CO32− or SO42−? Justify your answer.
Chapter 1 Solutions
Principles of Modern Chemistry
Ch. 1 - Classify the following materials as substances or...Ch. 1 - Classify the following materials as substances or...Ch. 1 - A 17th-century chemist wrote of the “simple bodies...Ch. 1 - Since 1800, almost 200 sincere but erroneous...Ch. 1 - A sample of ascorbic acid (vitamin C) is...Ch. 1 - A sample of a compound synthesized and purified in...Ch. 1 - Nitrogen (N) and silicon (Si) form two binary...Ch. 1 - Iodine (I) and fluorine (F) form a series of...Ch. 1 - Vanadium (V) and oxygen (O) form a series of...Ch. 1 - Prob. 10P
Ch. 1 - Prob. 11PCh. 1 - Prob. 12PCh. 1 - Pure nitrogen dioxide (NO2) forms when dinitrogen...Ch. 1 - Gaseous methanol (CH3OH) reacts with oxygen (O2)...Ch. 1 - In J. J. Thompson’s experiment depicted in Figures...Ch. 1 - In the problem 15 above, what is vy , the...Ch. 1 - The natural abundances and isotopic masses of the...Ch. 1 - The natural abundances and isotopic masses of the...Ch. 1 - Prob. 19PCh. 1 - More than half of all the atoms in naturally...Ch. 1 - The isotope of plutonium used for nuclear fission...Ch. 1 - The last “missing” element from the first six...Ch. 1 - Prob. 23PCh. 1 - In 1982, the production of a single atom of...Ch. 1 - Prob. 25PCh. 1 - Prob. 26PCh. 1 - Compute the relative molecular masses of the...Ch. 1 - Prob. 28PCh. 1 - Suppose that a person counts out gold atoms at the...Ch. 1 - A gold atom has a diameter of 2.881010m . Suppose...Ch. 1 - The vitamin A molecule has the formula C20H30O ,...Ch. 1 - Arrange the following in order of increasing mass:...Ch. 1 - Mercury is traded by the “flask,” a unit that has...Ch. 1 - Gold costs $400 per troy ounce, and...Ch. 1 - Aluminum oxide (Al2O3) occurs in nature as a...Ch. 1 - Prob. 36PCh. 1 - Soft wood chips weighing 17.2 kg are placed in an...Ch. 1 - In a reproduction of the Millikan oil-drop...Ch. 1 - A rough estimate of the radius of a nucleus is...Ch. 1 - In a neutron star, gravity causes the electrons to...Ch. 1 - Prob. 41APCh. 1 - Naturally occurring rubidium (Rb) consists of two...Ch. 1 - A sample of a gaseous binary compound of boron and...
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