Essential Organic Chemistry (3rd Edition)
3rd Edition
ISBN: 9780321937711
Author: Paula Yurkanis Bruice
Publisher: PEARSON
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Question
Chapter 10.19, Problem 29P
Interpretation Introduction
Interpretation
Estimate the
Concept introduction:
UV/vis spectroscopy: It is deal with information about various compounds that have conjugated double, the UV light and visible light have jest the right energy to cause an electronic transition in a molecule that is to promote an electron from one molecular orbital to another higher energy.
Henderson-Hesselbalch equation: The acid lose a proton in an aqueous solution depends on the both the
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Students have asked these similar questions
Estimate the Ka of a weak acid from the data given below. One gram quantities of
the acid were dissolved in equal quantities of the various buffer solutions and all
solutions were measured under the same conditions. The anion of the acid is the
only species that absorbs at the wavelength used.
pH:
Abs:
4
0.0
5
0.0
6
0.06
7
0.39
8
0.95
9
1.13
10
11
1.18 1.18
1.) Beer's Law can be used to find the concentration of a solution by measuring its absorbance. The law is given by
?=???A=ϵbC
Where A is the absorbance, ?ϵ is the molar absorptivity, b is the pathlength of the light (the width of the sample cell), and C is the concentration of the solution.
A student is analyzing a solution of a metal, and finds that the absorbance of the solution is 0.532. If ?=187 L⋅g−1⋅cm−1ϵ=187 L⋅g−1⋅cm−1 and ?=1 cmb=1 cm , what is the concentration of the metal in solution (in g/L)?
* 352
* 2.84×10−32.84×10−3
* 2.84×10−22.84×10−2
* 96.8
2.) How many significant figures does the number 0.00358 have?
Group of answer choices
a.1
b.2
c.3
d.5
3.) A 10.00 mL solution of a certain food dye has a concentration of 1.47 g /L. What is the total mass of food dye in the solution? Report your answer with the correct number of significant figures.
There are many organic acids and bases in our cells, and their presence modifies the pH of the fluids inside them. It is useful to be able to assess the pH of solutions of acids and bases and to make inferences from measured values of the pH. A solution of equal concentrations of lactic acid and sodium lactate was found to have pH= 3.08. (a) What are the values of pKa and Ka of lactic acid? (b) What would the pH be if the acid had twice the concentration of the salt?
Chapter 10 Solutions
Essential Organic Chemistry (3rd Edition)
Ch. 10.1 - Prob. 1PCh. 10.2 - What would distinguish the mass spectrum of...Ch. 10.2 - Prob. 3PCh. 10.3 - Prob. 5PCh. 10.3 - Suggest possible molecular formulas for a compound...Ch. 10.3 - Prob. 7PCh. 10.4 - Prob. 8PCh. 10.4 - Prob. 9PCh. 10.5 - Prob. 10PCh. 10.5 - Prob. 11P
Ch. 10.6 - Identify the ketone responsible for the mass...Ch. 10.6 - Prob. 13PCh. 10.8 - Prob. 14PCh. 10.8 - Prob. 15PCh. 10.12 - Which will occur at a larger wavenumber: a. a C :...Ch. 10.13 - Which will occur at a larger wavenumber: a. the C...Ch. 10.13 - Prob. 18PCh. 10.13 - Prob. 19PCh. 10.13 - Which will show an O 8 H stretch at a larger...Ch. 10.14 - Prob. 21PCh. 10.14 - Prob. 22PCh. 10.15 - Prob. 23PCh. 10.15 - Prob. 24PCh. 10.17 - Prob. 25PCh. 10.18 - Prob. 26PCh. 10.18 - Prob. 27PCh. 10.19 - Prob. 28PCh. 10.19 - Prob. 29PCh. 10.22 - How many signals would you expect to see in the 1H...Ch. 10.22 - Prob. 31PCh. 10.22 - Prob. 32PCh. 10.23 - Where would you expect to find the 1H NMR signal...Ch. 10.24 - Prob. 34PCh. 10.25 - Prob. 35PCh. 10.25 - Prob. 36PCh. 10.25 - Prob. 37PCh. 10.26 - Prob. 38PCh. 10.26 - Which of the following compounds is responsible...Ch. 10.27 - Prob. 40PCh. 10.27 - Prob. 41PCh. 10.27 - The 1H NMR spectra of two carboxylic acids with...Ch. 10.28 - Prob. 43PCh. 10.28 - Prob. 44PCh. 10.28 - Prob. 45PCh. 10.28 - Describe the 1H NMR spectrum you would expect for...Ch. 10.28 - Identify the compound with molecular formula...Ch. 10.29 - Prob. 48PCh. 10.29 - Prob. 49PCh. 10.29 - Identify the compound with a molecular formula of...Ch. 10 - In the mass spectrum of the following compounds,...Ch. 10 - For each of the following pairs of compounds,...Ch. 10 - Draw the structure of a saturated hydrocarbon that...Ch. 10 - Prob. 54PCh. 10 - Prob. 55PCh. 10 - How could you use UV spectroscopy to distinguish...Ch. 10 - Prob. 57PCh. 10 - Predict the relative intensities of the molecular...Ch. 10 - Prob. 59PCh. 10 - List the following compounds in order from highest...Ch. 10 - How can 1H NMR be used to prove that the addition...Ch. 10 - There are four esters with molecular formula...Ch. 10 - Prob. 63PCh. 10 - Prob. 64PCh. 10 - Each of the IR spectra presented here is...Ch. 10 - Prob. 66PCh. 10 - Five compounds are shown for each of the following...Ch. 10 - Prob. 68PCh. 10 - Prob. 69PCh. 10 - Phenolphthalein is an acidbase indicator. In...Ch. 10 - Which one of the following five compounds produced...Ch. 10 - Prob. 72PCh. 10 - Prob. 73PCh. 10 - Prob. 74PCh. 10 - How could 1H NMR distinguish between the compounds...Ch. 10 - Prob. 76PCh. 10 - Prob. 77PCh. 10 - The 1H NMR spectra of three isomers with molecular...Ch. 10 - The 1H NMR spectra of three isomers with molecular...Ch. 10 - Identify the following compounds. (Relative...Ch. 10 - An alkyl halide reacts with an alkoxide ion to...Ch. 10 - Determine the structure of a compound with...
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