Chemical Principles
8th Edition
ISBN: 9781305581982
Author: Steven S. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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Chapter 18, Problem 21E
Interpretation Introduction
Interpretation: The valence electron configuration for the group 3Aa elements needs to be determined. Also, variation of metallic character down in the group and difference between boron and aluminum needs to be explained.
Concept Introduction: In the long form of periodic table, the non-metals are mainly placed at the right side of the periodic table that is called as p-block elements. Metals make the 75 % part of the periodic table. Metals are electropositive elements and mainly form ionic compound whereas non-metals are electronegative elements and can form either covalent or ionic compounds.
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Experiment:
Each team will be provided with 5g of a mixture of acetanilide and salicylic acid. You will divide it into three 1.5 g portions in separate 125 mL Erlenmeyer flasks savıng some for melting point analysis. Dissolve the mixture in each flask in ~60mL of DI water by heating to boiling on a hotplate. Take the flasks off the hotplate once you have a clear solution and let them stand on the bench top for 5 mins and then allow them to cool as described below.
Sample A-Let the first sample cool slowly to room temperature by letting it stand on your lab bench, with occasional stirring to promote crystallization.
Sample B-Cool the second sample 1n a tap-water bath to 10-15 °C
Sample C-Cool the third sample in an ice-bath to 0-2 °C
Results:
weight after recrystalization and melting point temp.
A=0.624g,102-115°
B=0.765g, 80-105°
C=1.135g, 77-108
What is the percent yield of A,B, and C.
Chapter 18 Solutions
Chemical Principles
Ch. 18 - Prob. 1ECh. 18 - Prob. 2ECh. 18 - Prob. 3ECh. 18 - Prob. 4ECh. 18 - Prob. 5ECh. 18 - Prob. 6ECh. 18 - Prob. 7ECh. 18 - Prob. 8ECh. 18 - Prob. 9ECh. 18 - The electrolysis of aqueous sodium chloride...
Ch. 18 - Prob. 11ECh. 18 - Prob. 12ECh. 18 - Prob. 13ECh. 18 - Prob. 14ECh. 18 - Prob. 15ECh. 18 - Prob. 16ECh. 18 - Prob. 17ECh. 18 - Prob. 18ECh. 18 - Prob. 19ECh. 18 - Prob. 20ECh. 18 - Prob. 21ECh. 18 - Prob. 22ECh. 18 - Prob. 23ECh. 18 - Prob. 24ECh. 18 - Prob. 25ECh. 18 - Prob. 26ECh. 18 - Prob. 27ECh. 18 - Prob. 28ECh. 18 - Prob. 29ECh. 18 - Prob. 30ECh. 18 - Prob. 31ECh. 18 - Prob. 32ECh. 18 - Prob. 33ECh. 18 - Prob. 34ECh. 18 - Prob. 35ECh. 18 - Prob. 36ECh. 18 - Prob. 37ECh. 18 - Prob. 38ECh. 18 - Prob. 39ECh. 18 - Prob. 40ECh. 18 - Prob. 41ECh. 18 - Prob. 42ECh. 18 - Prob. 43ECh. 18 - Prob. 44ECh. 18 - Prob. 45ECh. 18 - Prob. 46ECh. 18 - Prob. 47ECh. 18 - Prob. 48ECh. 18 - Prob. 49ECh. 18 - The synthesis of ammonia gas from nitrogen gas...Ch. 18 - Prob. 51ECh. 18 - Prob. 52ECh. 18 - Prob. 53ECh. 18 - Prob. 54ECh. 18 - Prob. 55ECh. 18 - Prob. 56ECh. 18 - Prob. 57ECh. 18 - Prob. 58ECh. 18 - Prob. 59ECh. 18 - Prob. 60ECh. 18 - Prob. 61ECh. 18 - Prob. 62ECh. 18 - Prob. 63ECh. 18 - Prob. 64ECh. 18 - Prob. 65ECh. 18 - Prob. 66ECh. 18 - Prob. 67ECh. 18 - Prob. 68ECh. 18 - Prob. 69ECh. 18 - Prob. 70ECh. 18 - Prob. 71ECh. 18 - Prob. 72ECh. 18 - Prob. 73ECh. 18 - Prob. 74ECh. 18 - Prob. 75ECh. 18 - Prob. 76ECh. 18 - Prob. 77ECh. 18 - Prob. 78ECh. 18 - Prob. 79ECh. 18 - Prob. 80ECh. 18 - Prob. 81ECh. 18 - Prob. 82ECh. 18 - Prob. 83ECh. 18 - Prob. 84ECh. 18 - Prob. 85ECh. 18 - Prob. 86ECh. 18 - Prob. 87ECh. 18 - Prob. 88ECh. 18 - Prob. 89ECh. 18 - Prob. 90AECh. 18 - Prob. 91AECh. 18 - Prob. 92AECh. 18 - Prob. 93AECh. 18 - Prob. 94AECh. 18 - Prob. 95AECh. 18 - Prob. 96AECh. 18 - Prob. 97AECh. 18 - Prob. 98AECh. 18 - Prob. 99AECh. 18 - Prob. 100AECh. 18 - Prob. 101AECh. 18 - Prob. 102AECh. 18 - Prob. 103AECh. 18 - Prob. 104AECh. 18 - Prob. 105AECh. 18 - Prob. 106AECh. 18 - Prob. 107AECh. 18 - Prob. 108AECh. 18 - Prob. 109AECh. 18 - Prob. 110AECh. 18 - Prob. 111AECh. 18 - Prob. 112AECh. 18 - Hydrogen gas is being considered as a fuel for...Ch. 18 - Prob. 114AECh. 18 - Prob. 115AECh. 18 - Prob. 116AECh. 18 - Prob. 117AECh. 18 - Prob. 118AECh. 18 - Prob. 119AECh. 18 - What is the molecular structure for each of the...Ch. 18 - Prob. 121AECh. 18 - Prob. 122AECh. 18 - Prob. 123CPCh. 18 - Prob. 124CPCh. 18 - Prob. 125CPCh. 18 - Prob. 126CPCh. 18 - Prob. 127CPCh. 18 - Prob. 128CPCh. 18 - Prob. 129CPCh. 18 - Prob. 130CPCh. 18 - Prob. 131CPCh. 18 - Prob. 132CPCh. 18 - Prob. 133CP
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