Errors in Introductory Chemistry 6th ed, Tro (Responses)


1	Chapter	Book	Page Number	Problem, Figure, or Reference:	Error Description	Submitted By:	Timestamp

2	1	Textbook	10	Example 1.1 Parts c, d, e	Answer for (c) calculated incorrectly. Answer to (c) should be 52 ppm, meaning answer to (d) should be 1.3 ppm/yr, and answer to (e) should be 409 ppm.	Lund	8/28/2017 9:08:55
3	1	Textbook	10	Example 1.1c,d,e	On questions C through E, the numbers are incorrect. In question C, they incorrectly state that the concentration was 390 ppm in the year 2000 instead of it being 370 ppm. Questions D and E are then incorrect since they use 390 ppm for their calculations.	Lund	8/31/2018 10:35:31
4	2	Textbook	53 (from etext 2.0)	2.41c	The graduated cylinder shown only has markings for 1 decimal place, but the answer in the back of the text, p. A-1 (from etext 2.0) has 2 decimal places.	Lund	9/8/2017 19:08:11
5	2	Textbook	79 (from etext 2.0)	2.79ab	The answer for 2.79a is 2.255×10⁷ kg (answer incorrectly shows Mg). The answer for 2.79b is 2.255×10⁴ Mg (answer incorrectly shows mg).	Lund	6/15/2020 12:07:45
6	2	Textbook	A-3	2.103	The answer should read, "Yes, the density of the crown is 19.3 g/cm³" (not 1.93 g/cm³).	Lund	9/2/2019 8:37:15
7	3	Textbook	83	Example 3.10	In the 'Solve' portion of Example 3.10, the value of C = 0.372 J/g ºC, but when this is plugged into the equation, the units change to 1/g ºC.	Lund	9/8/2017 18:58:59
8	3	eText	77	Fahrenheit scale definition	The word ""prssure" should be spelled as "pressure".	Lund	2/3/2021 10:00:05
9	4	Textbook	102	Long paragraph	Replace "defection" with "deflection".	Lund	9/13/2019 9:27:27
10	4	Textbook	128	93c	The atomic number (lower left subscript) for Pb is 82, NOT 32.	Lund	11/27/2017 9:38:10
11	5	eText	142	Paragraph Before Table 5.3	The third sentence should read, "You need to be able to recognize polyatomic ions in a chemical formula, so it is a good idea to become familiar with Table 5.3."	Lund	6/18/2021 8:17:22
12	5	eText	148		Refers to NO₃⁻ and NO₂⁻ both as nitrate, but NO₂⁻ is nitrite.	Lund	2/11/2020 17:16:01
13	5	eText	148	Table of Ions	ClO⁻ is the hypochlorite ion (incorrectly shown as hypochloride). ClO₂⁻ is the chlorite ion (incorrectly shown as chloride).	Lund	2/18/2021 10:52:11
14	5	eText	149	Table of Prefixes	The prefix tri- is misspelled. Also, hepta- means 7.	Lund	9/27/2019 12:46:09
15	5	Textbook	149	Prefixes	The prefix hepta- means 7.	Lund	9/28/2018 17:47:47
16	6	eText	173	List of Conversions	Conversion shows, "32.06 g sulfur = 1 mor sulfur = 6.022 x 10²³ S atoms". It is 1 mol sulfur, not 1 mor sulfur.	Lund	10/4/2019 9:24:27
17	6	Textbook	174	Example 6.2	Under Solve > Solution - Numerator should be "S" not "C"	Lund	6/29/2018 9:12:55
18	6	eText	175	Example 6.3	The solution map shown for example 6.3 shows the solution map for converting lb per dozen of nails to number of nails instead of between grams and number of C atoms.	Lund	2/24/2020 10:38:42
19	6	eText	179	Solution Map	The solution for finding the mol CO₂ does not have the 22.5 g labeled as 22.5 g CO₂ ; also it does not have the (1mol CO₂/44.01g) labeled properly as (1mol CO₂/44.01g CO₂).	Lund	2/18/2021 10:59:33
20	6	eText	200	6.59	The formula is correctly written as CaCl₂ rather than Cacl₂.	Lund	9/28/2020 12:26:18
21	7	eText	210	Top of Page	Paragraph reads:, "In summary, each of tha color changee following provides evidence of a chemical reaction:" It should read, "In summary, each of the following provides evidence of a chemical reaction:"	Lund	10/14/2019 7:48:33
22	7	eText	214	Example 7.2	In the balancing equation examples it states: 3 O atoms → 1C + 2C = 3 C atoms. It is supposed to say 3 C atoms on the left and not "O".	Lund	2/19/2021 11:24:18
23	7	eText	215	Example 7.4	In the second SOLUTION group, H₂SO₄ mistakenly written as H₂SO₂.	Creel	10/5/2020 7:16:41
24	7	Textbook	221	Figures on the page.	The color of the lead ion changes from gray to purple. It should remain gray. The iodide ion appears to turn from purple to yellow. It should remain purple.	Lund	10/13/2017 16:28:52
25	7	eText		Example 7.7	The solution map shown for example 7.7 shows the chemical equation for Lithium Nitrate and Sodium Sulfate when what was being discussed in the problem is Sodium Chloride and Copper (II) Carbonate.	Lund	2/26/2020 23:34:45
26	7	eText		Example 7.8	In Step 1, sodium sulfate is written as NaSO₄. Should be Na₂SO₄.	Lund	2/23/2021 14:07:45
27	7	eText	225	Example 7.10	LiNO₃ (aq) is mistakenly written as LiSO₃ (aq).	Lund	10/30/2019 7:46:52
28	7	Textbook	234	Example 7.15(b) Solution	Displacement is misspelled.	Lund	10/13/2017 16:22:48
29	7	eText	A-9	7.35 a	The formula for lead(II) sulfide is PbS, not Pbs.	Lund	10/2/2020 8:55:22
30	7	eText	242	7.51b	The chemical equation should read: NiS(s) +O₂(g) → NiO(s) + SO₂(g) The O was left off of NiO(s) in the eText.	Lund	10/5/2020 7:10:28
31	8	eText	254	Conceptual Checkpoint 8.2	The answer is correctly provided as 60.0 g. However, the feedback should state that the molar mass of C is two times the molar mass of A (NOT 3 times the mass of A).	Lund	3/9/2021 10:29:11
32	8	eText	256	Example 8.3	Under "Relationships Used", it should read 1kg=1000g, NOT 1kg=100g	Lund	10/12/2020 7:55:01
33	8	eText	258	"To summarize"	In the formula for percent yield, in the denominator, the word "theortical" should "theoretical".	Lund	3/31/2021 9:42:44
34	8	eText	A-9	8.17d	The solution should be 2.012×10⁻³ mol NO₂ (not 2.012×10⁻²).	Lund	10/14/2020 14:28:09
35	8	eText	277	8.35	The second arrow in the chemical equation should be replaced with a plus sign, so it reads: 2 Al (s) + Fe₂O₃ (s) → Al₂O₃ (s) + 2 Fe (s)	Lund	10/14/2020 14:31:30
36	9	eText	290	definition link to visible light	780 nm is generally considered outside of the visible light spectrum. Earlier references in this chapter indicate a wavelength of 750 nm.	Lund	10/29/2020 15:07:33
37	9	eText	297	Conceptual Checkpoint 9.5	There are 3 orbitals in a p subshell, not 5. Answer marked incorrectly, though the description is correct.	Lund	10/27/2021 8:06:11
38	10	eText	331	Example 10.4	In Step 2, the word "eletrons" should be "electrons".	Lund	3/31/2021 9:27:42
39	10	eText	331	Example 10.5	In Step 2, the word "eletrons" should be "electrons".	Lund	3/31/2021 9:28:12
40	10	eText	360	Paragraph 2	The word "tenstory" should be written as "ten-story".	Lund	3/31/2021 9:35:20
41	10	eText	346	Self Assessment Quiz Question 10	The answer is correct, but the explanation for the answer is not. The explanation states that the electronegativity of Cl is 3.5. The correct electronegativity of Cl is 3.0.	Lund	12/6/2021 9:20:25
42	12	Textbook	418	Fig 12.13	Caption should read, "A graph...heated from -20°C to 35°C." (Replace 220°C with -20°C)	Lund	11/20/2017 11:13:48
43	13	eText	452	Section 13.4 Last Paragraph	In 4th sentence, "carbon dioxide" misspelled as "carbondioxide" (without a space).	Lund	4/5/2021 17:02:20
44	13	eText	468	Section 13.10 Last Paragraph	In 2nd sentence, "and becomes" misspelled as "andbecomes" (without a space).	Lund	4/26/2021 10:33:11
45	14	eText	509	Example 14.10	In the second line of Method 2, [OH⁻] incorrectly written as [HO⁻].	Lund	5/4/2021 16:33:01