ChemCom Chemistry in the Community 3rd Edition Textbook Errors and corrections

Purpose of Site:

This site is for the use of high school chemistry teachers who are using the third edition of ChemCom. Its purpose is to provide practicing teachers with advanced knowledge of possible typos or errors that appear in the text or teacher guide.

If you know of an error or an area in the text which is misleading or unclear, please send me an email. If it can help fellow teachers, I will post it on the net.

Thank you.

Joe Zisk
Chemistry
Souderton Area High School
Souderton, PA 18964

Figure 28, the "Hardness (CaCO₃) in ppm" chart, the less than sign (<) in front of the value 240 ought to be greater than sign (>) or read >240.

Page 108

Your Turn Chemical Elements Crossword Puzzle (B.2)
5 Across - has one extra space - the answer is Calcium
 

Page 140

Table 7, Metal Activity Series. please remove the two ions Cr²⁺ and Fe⁺³, second printing of third edition text on 2-28-98 by Kendall/Hunt
 
 

Page 142

Figure 22, the lower scale for M_OH-. for a pH= 14, the last value ought to be I0⁰ (or 10 to the zero power) rather than (0 as it reads now).
 
 

Page 532

The procedure for the nitrate brown ring test is to be changed as follows:

Follow this procedure to perform the brown-ring test:

a. After putting a wellplate on a white sheet of paper, place three drops of nitrate ion solution in a clean depression.

b. Carefully add two drops of iron (II) sulfate (FeSO4) to the depression and gently mix the two solutions with a toothpick to form a single layer of solution.

c. Working carefully and slowly, add two drops of concentrated sulfuric acid so the solution flows along the wall of the depression to form a second layer above the fist one.

Your Turn paragraph 2, 3rd line "543" should read "page 542"
 
 

Teacher's Guide

Page xviii

The reagent zinc chloride (ZnCI₂) was omitted from expendables. Please add to list and quantity is 95 g.
 
 

Page xxxi

Darken the background according to the legend given on page xxx (Addresses all fundamental concepts and principles) of the entries B. I.; B.2; and B.3, second column.
 
 

Page xxxiii

New name for 'Modern Talking Pictures Service is now "Modern Sponsored Marketing Services" and new address is

645 Crooks Rd
Troy, MI 48084
phone: (800) 243-6877 or (248) 816-4050
fax: (248) 816-9119

The chart of element cards, the card which reads (Atomic Mass 14) is the element Helium and should read Atomic Mass 4.
 
 

Page 59

*3rd row, right box (for Argon) should read: O in oxide -- (not O in oxide -5)
 
 

Page 65

*4.d calculates wrong compound

should read: (12.01x8) + (1.01x10) + (14.01x4) + (16.00x2)= 194.22
 
 

Page 68

*top of page, denominator (azurite) should be Cu₃ not Cu₂

*2. Should read: 111.7 g Fe ( 1,117 g)

*2nd line of 2. Should read 1,000 g Fe₃O₄ (Fe₂0₄)
 
 

Page 128

See goal 19, delete 'from different cultures' to 'from different microwave dinners.
 
 

Page 142

In paragraph for "Vitamin C solution:" the second sentence ought to be "Dilute to I00 mL rather than (I000 ML).
 
 

Page 144

In the chart "To prepare concentration", the second line, second column ought to read I0 mL 0. I % - rather than (O mL 0. I %).
 
 

Page 160

The 2 nd line in Data Table at top of page, second entry should be 'carbohydrate' and not 'protein' and same for third entry, it should be ____ 'g carbohydrate' rather than 'protein.
 
 

Page 191 Your Turn

#3a. for natural gas -; changed by 22% from 1970 to 90, Show how to calculate this value

1970. (67-45) = 22 units

1990. (74-57) = -17 "

5 units increase

or % increase 5/22 x 100% = 23%
 
 

Page 193

If another column might be added to the chart "Different element names by ACS and IUPAC to include the accepted list of names these elements as reported in Chemical and Engineering News, Page 9, September 8, 1997 and which are:
 
 

Page 283

Summary Questions #3 says "example from previous question…" (not clear)
 
 

Page 288

Summary Questions #8a. reads 6 O² , should read 6 O₂
 
 

Joseph F. Zisk
jzisk@mciu.org

1999