EBK CHEMISTRY FOR CHANGING TIMES
14th Edition
ISBN: 8220100663482
Author: MCCREARY
Publisher: PEARSON
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Chapter 15, Problem 71AP
Both a banana and a hand grenade have about 170 kcal of energy. (a) What is the power output in watts of a banana if its energy is expended over 2.0 h by lying on a couch watching television? (b) What is the power output in watts of a hand grenade if its energy is expended in 0.0012 s? How do the banana and hand grenade compare in energy and in power?
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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
EBK CHEMISTRY FOR CHANGING TIMES
Ch. 15 - Prob. 1RQCh. 15 - Prob. 2RQCh. 15 - Prob. 3RQCh. 15 - Prob. 4RQCh. 15 - Prob. 5PCh. 15 - Prob. 6PCh. 15 - Prob. 7PCh. 15 - Prob. 8PCh. 15 - Prob. 9PCh. 15 - Prob. 10P
Ch. 15 - Prob. 11PCh. 15 - Prob. 12PCh. 15 - Prob. 13PCh. 15 - Prob. 14PCh. 15 - Prob. 15PCh. 15 - Prob. 16PCh. 15 - Prob. 17PCh. 15 - Prob. 18PCh. 15 - Prob. 19PCh. 15 - Prob. 20PCh. 15 - Prob. 21PCh. 15 - Prob. 22PCh. 15 - Prob. 23PCh. 15 - Prob. 24PCh. 15 - Prob. 25PCh. 15 - Prob. 26PCh. 15 - Which has higher entropy, potassium in solid...Ch. 15 - Prob. 28PCh. 15 - Prob. 29PCh. 15 - Prob. 30PCh. 15 - Prob. 31PCh. 15 - Prob. 32PCh. 15 - Prob. 33PCh. 15 - Prob. 34PCh. 15 - Prob. 35PCh. 15 - Prob. 36PCh. 15 - Prob. 37PCh. 15 - Prob. 38PCh. 15 - Prob. 39PCh. 15 - Prob. 40PCh. 15 - Prob. 41PCh. 15 - Prob. 42PCh. 15 - Prob. 43PCh. 15 - Prob. 44PCh. 15 - Prob. 45PCh. 15 - Prob. 46PCh. 15 - Prob. 47PCh. 15 - Prob. 48PCh. 15 - Prob. 49PCh. 15 - Prob. 50PCh. 15 - Prob. 51PCh. 15 - Prob. 52PCh. 15 - Prob. 53PCh. 15 - Prob. 54PCh. 15 - Prob. 55PCh. 15 - Prob. 56PCh. 15 - Prob. 57PCh. 15 - What are some problems associated with the use of...Ch. 15 - Prob. 59PCh. 15 - Prob. 60PCh. 15 - Prob. 61PCh. 15 - Prob. 62PCh. 15 - Prob. 63PCh. 15 - Prob. 64PCh. 15 - Prob. 65PCh. 15 - Prob. 66APCh. 15 - Prob. 67APCh. 15 - Prob. 68APCh. 15 - Prob. 69APCh. 15 - Prob. 70APCh. 15 - Both a banana and a hand grenade have about 170...Ch. 15 - Prob. 72APCh. 15 - Prob. 73APCh. 15 - Prob. 74APCh. 15 - Prob. 75APCh. 15 - Prob. 76APCh. 15 - Prob. 77APCh. 15 - Prob. 78APCh. 15 - Production of gasoline from tar sands requires...Ch. 15 - Prob. 80APCh. 15 - Prob. 15.1CTECh. 15 - Prob. 15.2CTECh. 15 - Prob. 15.3CTECh. 15 - Prob. 15.4CTECh. 15 - Prob. 15.5CTECh. 15 - Prob. 15.6CTECh. 15 - Prob. 1CGPCh. 15 - Prepare a PowerPoint, poster, or other...Ch. 15 - Prob. 3CGPCh. 15 - Prob. 4CGPCh. 15 - Prob. 5CGPCh. 15 - Prob. 6CGPCh. 15 - Prob. 7CGPCh. 15 - Prob. 8CGPCh. 15 - Prob. 9CGPCh. 15 - Prob. 1CHQCh. 15 - Prob. 2CHQCh. 15 - Prob. 3CHQCh. 15 - Prob. 4CHQCh. 15 - Prob. 5CHQ
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