INTRODUCTORY CHEMISTRY-W/SEL.SOLN.MAN.
6th Edition
ISBN: 9780134845609
Author: Tro
Publisher: PEARSON
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Textbook Question
Chapter 15, Problem 3E
Why do chemists seek to control reaction rates?
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3. Propose a synthesis for the following transformation. Do not draw an arrow-pushing
mechanism below, but make sure to draw the product of each proposed step (3 points).
CN
+ En
CN
3) Propagation of uncertainty. Every measurement has uncertainty. In this problem, we'll
evaluate the uncertainty in every step of a titration of potassium hydrogen phthalate (a
common acid used in titrations, abbreviated KHP, formula CsH5KO4) with NaOH of an
unknown concentration.
The calculation that ultimately needs to be carried out is:
concentration NaOH
1000 x mass KHP × purity KHP
molar mass KHP x volume NaOH
Measurements:
a) You use a balance to weigh 0.3992 g of KHP. The uncertainty is ±0.15 mg (0.00015
g).
b) You use a buret to slowly add NaOH to the KHP until it reaches the endpoint. It takes
18.73 mL of NaOH. The uncertainty of the burst is 0.03 mL..
c) The manufacturer states the purity of KHP is 100%±0.05%.
d) Even though we don't think much about them, molar masses have uncertainty as well.
The uncertainty comes from the distribution of isotopes, rather than random
measurement error. The uncertainty in the elements composing KHP are:
a. Carbon:
b. Hydrogen:
±0.0008…
Don't used hand raiting and don't used Ai solution
Chapter 15 Solutions
INTRODUCTORY CHEMISTRY-W/SEL.SOLN.MAN.
Ch. 15 - Q1. Which change is likely to increase the rate of...Ch. 15 - The equilibrium constants at a fixed temperature...Ch. 15 - Q3. The concentrations of A,B, and C for the...Ch. 15 - Q4. What is the correct expression for the...Ch. 15 - Q5. Consider the reaction between NO and to form...Ch. 15 - Q6. The equilibrium constant for this reaction is...Ch. 15 - Prob. 7SAQCh. 15 - Q8. The decomposition of is endothermic.
Which...Ch. 15 - Prob. 9SAQCh. 15 - Prob. 10SAQ
Ch. 15 - Prob. 1ECh. 15 - Prob. 2ECh. 15 - 3. Why do chemists seek to control reaction...Ch. 15 - How do most chemical reactions occur?Ch. 15 - What factors influence reaction rates? How?Ch. 15 - Prob. 6ECh. 15 - 7. What is dynamic chemical equilibrium?
Ch. 15 - Prob. 8ECh. 15 - Explain why the concentrations of reactants and...Ch. 15 - Devise your own analogylike the Narnia and Middle...Ch. 15 - Prob. 11ECh. 15 - Write the expression for the equilibrium constant...Ch. 15 - What does a small equilibrium constant tell you...Ch. 15 - Prob. 14ECh. 15 - Prob. 15ECh. 15 - Prob. 16ECh. 15 - Prob. 17ECh. 15 - Prob. 18ECh. 15 - What is the effect of decreasing the concentration...Ch. 15 - Prob. 20ECh. 15 - Prob. 21ECh. 15 - What is the effect of increasing the pressure of a...Ch. 15 - Prob. 23ECh. 15 - Prob. 24ECh. 15 - 25. What is the effect of decreasing the pressure...Ch. 15 - 26. What is the effect of increasing the...Ch. 15 - 27. What is the effect of increasing the...Ch. 15 - Prob. 28ECh. 15 - Prob. 29ECh. 15 - Prob. 30ECh. 15 - Prob. 31ECh. 15 - Prob. 32ECh. 15 - Prob. 33ECh. 15 - Prob. 34ECh. 15 - Does a catalyst affect the value of the...Ch. 15 - Prob. 36ECh. 15 - Prob. 37ECh. 15 - Prob. 38ECh. 15 - The body temperature of cold-blooded animals...Ch. 15 - The rate of a particular reaction doubles when the...Ch. 15 - Prob. 41ECh. 15 - Prob. 42ECh. 15 - Write an equilibrium expression for each chemical...Ch. 15 - Prob. 44ECh. 15 - Write an equilibrium expression for each chemical...Ch. 15 - Write an equilibrium expression for each chemical...Ch. 15 - Prob. 47ECh. 15 - Prob. 48ECh. 15 - 49. For each equilibrium constant, indicate if you...Ch. 15 - Prob. 50ECh. 15 - Prob. 51ECh. 15 - 52. Consider the reaction.
An equilibrium mixture...Ch. 15 - Consider the reaction. 2H2S(g)2H2(g)+S2(g) An...Ch. 15 - Prob. 54ECh. 15 - Prob. 55ECh. 15 - Consider the reaction. CaCO3(s)CaCO(s)+CO2(g) An...Ch. 15 - Prob. 57ECh. 15 - Prob. 58ECh. 15 - Prob. 59ECh. 15 - Prob. 60ECh. 15 - Prob. 61ECh. 15 - Prob. 62ECh. 15 - Consider this reaction at equilibrium....Ch. 15 - Prob. 64ECh. 15 - Consider this reaction at equilibrium....Ch. 15 - Prob. 66ECh. 15 - Consider the effect of a volume change on this...Ch. 15 - Prob. 68ECh. 15 - Prob. 69ECh. 15 - Prob. 70ECh. 15 - Prob. 71ECh. 15 - Prob. 72ECh. 15 - Prob. 73ECh. 15 - Prob. 74ECh. 15 - Coal, which is primarily carbon, can be converted...Ch. 15 - 76. Coal can be used to generate hydrogen gas (a...Ch. 15 - 77. For each compound, write an equation showing...Ch. 15 - Prob. 78ECh. 15 - Prob. 79ECh. 15 - Prob. 80ECh. 15 - A saturated solution of MgF2 has [Mg2+]=2.6104M...Ch. 15 - Prob. 82ECh. 15 - Prob. 83ECh. 15 - Prob. 84ECh. 15 - Prob. 85ECh. 15 - Prob. 86ECh. 15 - Prob. 87ECh. 15 - 88. Calculate the molar solubility of .
Ch. 15 - Prob. 89ECh. 15 - Prob. 90ECh. 15 - 91. Consider the reaction.
A solution is made...Ch. 15 - Prob. 92ECh. 15 - Prob. 93ECh. 15 - Prob. 94ECh. 15 - This reaction is exothermic....Ch. 15 - Prob. 96ECh. 15 - 97. Calculate the molar solubility of CuS. How...Ch. 15 - Calculate the molar solubility of FeCO3. How many...Ch. 15 - Prob. 99ECh. 15 - Prob. 100ECh. 15 - Prob. 101ECh. 15 - Prob. 102ECh. 15 - Consider the reaction: CaCO3CaO(s)+CO2(g) A sample...Ch. 15 - Prob. 104ECh. 15 - A 2.55-L solution is 0.115 M in Mg2+. If K2CO3 is...Ch. 15 - Prob. 106ECh. 15 - Prob. 107ECh. 15 - Prob. 108ECh. 15 - One of the main components of hard water is CaCO3....Ch. 15 - Prob. 110ECh. 15 - The reaction A(g)+B(g)2C(g) has an equilibrium...Ch. 15 - Describe three ways a reaction at equilibrium can...Ch. 15 - Solid CaCO3 decomposes into solid CaO and gaseous...
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