Chemistry: Structure and Properties Plus MasteringChemistry with eText -- Access Card Package
1st Edition
ISBN: 9780321729736
Author: Nivaldo J. Tro
Publisher: PEARSON
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Chapter A2, Problem 5E
Interpretation Introduction
Interpretation: We have to explain which numbers are exact (and therefore have an unlimited numbers of significant)
a.
b.
c. EPA gas mileage rating of 26 miles per gallon
d. should be explained
Concept introduction:
► Exact numbers have definite values, or the values are obtained by counting of objects, whereas am measured number is obtained when a quantity is measured by a measuring device. Exact numbers have unlimited number of significant figures.
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Predict the products of this organic reaction:
+
H
ZH
NaBH3CN
H+
n.
?
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structure.
X
What is the missing reactant R in this organic reaction?
+ R
H3O+
+
• Draw the structure of R in the drawing area below.
• Be sure to use wedge and dash bonds if it's necessary to draw one particular enantiomer.
Click and drag to start drawing a
structure.
What would be the best choices for the missing reagents 1 and 3 in this synthesis?
1
1. PPh3
2. n-BuLi
2
• Draw the missing reagents in the drawing area below. You can draw them in any arrangement you like.
• Do not draw the missing reagent 2. If you draw 1 correctly, we'll know what it is.
• Note: if one of your reagents needs to contain a halogen, use bromine.
Click and drag to start drawing a structure.
Chapter A2 Solutions
Chemistry: Structure and Properties Plus MasteringChemistry with eText -- Access Card Package
Ch. A2 - For each number, underline the zeroes that are...Ch. A2 - Prob. 2ECh. A2 - Prob. 3ECh. A2 - How many significant figures are in each number?...Ch. A2 - Prob. 5ECh. A2 - Indicate the number of significant figures in each...Ch. A2 - Round each number to four significant figures. a....Ch. A2 - Round each number to three significant figures. a....Ch. A2 - Prob. 9ECh. A2 - Prob. 10E
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