Questions 35 and 36:Calculate the mass of each of the following. a) 4 .30 × 10 21 molecules of C 19 H 37 COOH b) 8.67 × 10 24 atoms of flourine c) 7.23 × 10 23 formula units of nickel ( II ) chloride
Questions 35 and 36:Calculate the mass of each of the following. a) 4 .30 × 10 21 molecules of C 19 H 37 COOH b) 8.67 × 10 24 atoms of flourine c) 7.23 × 10 23 formula units of nickel ( II ) chloride
Solution Summary: The author explains that the mass of 4Text.30times1021 molecules is to be calculated.
Unshared, or lone, electron pairs play an important role in determining the chemical and physical properties of organic compounds.
Thus, it is important to know which atoms carry unshared pairs.
Use the structural formulas below to determine the number of unshared pairs at each designated atom.
Be sure your answers are consistent with the formal charges on the formulas.
CH.
H₂
fo
H2
H
The number of unshared pairs at atom a is
The number of unshared pairs at atom b is
The number of unshared pairs at atom c is
HC
HC
HC
CH
The number of unshared pairs at atom a is
The number of unshared pairs at atom b is
The number of unshared pairs at atom c is
Draw curved arrows for the following reaction step.
Arrow-pushing Instructions
CH3
CH3 H
H-O-H
+/
H3C-C+
H3C-C-0:
CH3
CH3 H
Chapter 7 Solutions
Introductory Chemistry: An Active Learning Approach
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