
CHEMISTRY+CHEM...HYBRID ED.(LL)>CUSTOM<
9th Edition
ISBN: 9781305020788
Author: John C.Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher: CENGAGE C
expand_more
expand_more
format_list_bulleted
Textbook Question
Chapter 7.6, Problem 5Q
The most common oxidation state of a rare earth element is +3.
- a) What is the ground state electron configuration of Sm3+?
- b) Write a balanced chemical equation for the reaction of Sm(s) and O2(g) to form samarium(III) oxide.
Expert Solution & Answer

Trending nowThis is a popular solution!

Students have asked these similar questions
Using the Nernst equation to calculate nonstandard cell voltage
Try Again
Your answer is wrong. In addition to checking your math, check that you used the right data and DID NOT round any intermediate calculations.
A galvanic cell at a temperature of 25.0 °C is powered by the following redox reaction:
2+
2+
Sn²+ Ba(s)
(aq) + Ba (s) Sn (s) + Ba²+ (aq)
→>>
Suppose the cell is prepared with 6.10 M Sn
2+
2+
in one half-cell and 6.62 M Ba
in the other.
Calculate the cell voltage under these conditions. Round your answer to 3 significant digits.
1.71 V
☐ x10
☑
5
0/5
?
00.
18
Ar
Question: Find both the b (gradient) and a (y-intercept) value from the list of data below:
(x1 -x̄)
370.5
(y1 - ȳ)
5.240
(x2 - x̄)
142.5
(y2 - ȳ)
2.004
(x3 - x̄)
28.5
(y3 - ȳ)
0.390
(x4 - x̄)
-85.5
(y4 - ȳ)
-1.231
(x5 - x̄)
-199.5
(y5 - ȳ)
-2.829
(x6 - x̄)
-256.5
(y6 - ȳ)
-3.575
Calculating standard reaction free energy from standard reduction...
Using standard reduction potentials from the ALEKS Data tab, calculate the standard reaction free energy AG° for the following redox reaction.
Be sure your answer has the correct number of significant digits.
3Cu+ (aq) + Cro²¯ (aq) +4H₂O (1) → 3Cu²+ (aq) +Cr(OH)3 (s)+5OH˜¯ (aq)
0
kJ
☐ x10
00.
18
Ar
Chapter 7 Solutions
CHEMISTRY+CHEM...HYBRID ED.(LL)>CUSTOM<
Ch. 7.1 - How many electrons can be accommodated in the n =...Ch. 7.1 - Prob. 2RCCh. 7.2 - Based on the Aufbau principle and the n + rule,...Ch. 7.3 - (a) What element has the configuration...Ch. 7.3 - Write one possible set of quantum numbers for the...Ch. 7.3 - Using the periodic table and without looking at...Ch. 7.3 - 1. What is the electron configuration of selenium...Ch. 7.3 - 2. Based on electron configurations, which of the...Ch. 7.4 - Prob. 1CYUCh. 7.4 - Prob. 1RC
Ch. 7.4 - Prob. 2RCCh. 7.4 - Which of the following species is most...Ch. 7.5 - Without looking at the figures for the periodic...Ch. 7.5 - What is the trend in sizes of the ions K+, S2, and...Ch. 7.5 - Prob. 2RCCh. 7.6 - Give the electron configurations for iron and the...Ch. 7.6 - Prob. 2QCh. 7.6 - Prob. 3QCh. 7.6 - Prob. 4QCh. 7.6 - Prob. 1RCCh. 7.6 - Prob. 2RCCh. 7.6 - The most common oxidation state of a rare earth...Ch. 7.6 - Prob. 6QCh. 7.6 - Prob. 7QCh. 7.6 - Use the atomic radii of scandium, yttrium,...Ch. 7.6 - Prob. 9QCh. 7.6 - Prob. 10QCh. 7 - Write the electron configurations for P and CI...Ch. 7 - Write the electron configurations for Mg and Ar...Ch. 7 - Using spdf notation, write the electron...Ch. 7 - Using spdf notation, give the electron...Ch. 7 - Prob. 5PSCh. 7 - Prob. 6PSCh. 7 - Use noble gas and spdf notations to depict...Ch. 7 - The lanthanides, once called the rare earth...Ch. 7 - Prob. 9PSCh. 7 - Prob. 10PSCh. 7 - What is the maximum number of electrons that can...Ch. 7 - What is the maximum number of electrons that can...Ch. 7 - Depict the electron configuration for magnesium...Ch. 7 - Depict the electron configuration for phosphorus...Ch. 7 - Using an orbital box diagram and noble gas...Ch. 7 - Using an orbital box diagram and noble gas...Ch. 7 - Using orbital box diagrams, depict an electron...Ch. 7 - Prob. 18PSCh. 7 - Prob. 19PSCh. 7 - Using orbital box diagrams and noble gas notation,...Ch. 7 - Manganese is found as MnO2 in deep ocean deposits....Ch. 7 - One compound found in alkaline batteries is NiOOH,...Ch. 7 - Prob. 23PSCh. 7 - Arrange the following elements in order of...Ch. 7 - Prob. 25PSCh. 7 - Prob. 26PSCh. 7 - Which of the following groups of elements is...Ch. 7 - Arrange the following atoms in order of increasing...Ch. 7 - Compare the elements Na, Mg, O, and P. (a) Which...Ch. 7 - Compare the elements B. Al, C, and Si. (a) Which...Ch. 7 - Explain each answer briefly. (a) Place the...Ch. 7 - Explain each answer briefly. (a) Rank the...Ch. 7 - Identify the element that corresponds to each of...Ch. 7 - Identify the element that corresponds to each of...Ch. 7 - Explain why the photoelectron spectra of hydrogen...Ch. 7 - Sketch the major features (number of peaks and...Ch. 7 - These questions are not designated as to type or...Ch. 7 - The deep blue color of sapphires comes from the...Ch. 7 - Using an orbital box diagram and noble gas...Ch. 7 - Prob. 40GQCh. 7 - Prob. 41GQCh. 7 - Prob. 42GQCh. 7 - Which of the following is not an allowable set of...Ch. 7 - A possible excited state for the H atom has an...Ch. 7 - The magnet in the following photo is made from...Ch. 7 - Name the element corresponding to each...Ch. 7 - Arrange the following atoms in order of increasing...Ch. 7 - Prob. 48GQCh. 7 - Answer the questions below about the elements A...Ch. 7 - Answer (he following questions about the elements...Ch. 7 - Which of the following ions are unlikely to be...Ch. 7 - Prob. 52GQCh. 7 - Answer each of the following questions: (a) Of the...Ch. 7 - Prob. 54GQCh. 7 - Prob. 55GQCh. 7 - Two elements in the second transition series (Y...Ch. 7 - Prob. 57GQCh. 7 - The configuration of an element is given here. (a)...Ch. 7 - Answer the questions below about the elements A...Ch. 7 - Answer the questions below concerning ground state...Ch. 7 - Nickel(II) formate [Ni(HCO2)2] is widely used as a...Ch. 7 - Spinets are solids with the general formula M2+...Ch. 7 - The following questions use concepts from this and...Ch. 7 - Which ions in the following list are not likely to...Ch. 7 - Answer the following questions about first...Ch. 7 - The ionization of the hydrogen atom can be...Ch. 7 - Compare the configurations below with two...Ch. 7 - Prob. 68SCQCh. 7 - Write electron configurations to show the first...Ch. 7 - Prob. 70SCQCh. 7 - (a) Explain why the sizes of atoms change when...Ch. 7 - Which of the following elements has the greatest...Ch. 7 - Prob. 73SCQCh. 7 - Prob. 74SCQCh. 7 - The energies of the orbitals in many elements have...Ch. 7 - The ionization energies for the removal of the...Ch. 7 - Using your knowledge of the trends in element...Ch. 7 - Prob. 78SCQCh. 7 - Prob. 79SCQCh. 7 - Prob. 80SCQCh. 7 - Thionyl chloride. SOCl2, is an important...Ch. 7 - Prob. 82SCQCh. 7 - Slaters rules are a way to estimate the effective...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.Similar questions
- Calculating the pH of a weak base titrated with a strong acid An analytical chemist is titrating 241.7 mL of a 0.4900M solution of methylamine (CH3NH2) with a 0.7800M solution of HNO3. The pK of methylamine is 3.36. Calculate the pH of the base solution after the chemist has added 17.7 mL of the HNO3 solution to it. Note for advanced students: you may assume the final volume equals the initial volume of the solution plus the volume of HNO3 solution added. Round your answer to 2 decimal places. pH = ☑ ? 18 Ararrow_forwardThe following is two groups (Regular tomato sauce & Salt Reduced Tomato Sauce) of data recorded by a team analysising salt content in tomato sauce using the MOHR titration method: Regular Tomato Sauce Salt Reduced Tomato Sauce 223.4 148.7 353.7 278.2 334.6 268.7 305.6 234.4 340.0 262.7 304.3 283.2 244.7 143.6 QUESTION: For both groups of data calculate the answers attached in the image.arrow_forwardThe following is a two groups (Regular tomato sauce & Salt Reduced Tomato Sauce) of data recorded by a team analysising salt content in tomato sauce using the MOHR titration method: Regular Tomato Sauce Salt Reduced Tomato Sauce 340.0mmol/L 262.7mmol/L QUESTION: For both groups (Regular & Salt Reduced tomato sauce) of data provide answers to the following calculations below: 1. Standard Deviation (Sx) 2. T Values (t0.05,4) 3. 95% Confidence Interval (mmol/L) 4. [Na+] (mg/100 mL) 5. 95% Confidence Interval (mg/100 mL)arrow_forward
- If we have leucine (2-amino-4-methylpentanoic acid), alanine (2-aminopropanoic acid) and phenylalanine (2-amino-3-phenylpropanoic acid), indicate the tripeptides that can be formed (use the abbreviated symbols Leu., Ala and Phe).arrow_forwardBriefly state why trifluoroacetic acid is more acidic than acetic acid.arrow_forwardExplain why acid chlorides are more reactive than amides in reactions with nucleophiles.arrow_forward
- Calculating the pH of a weak base titrated with a strong acid An analytical chemist is titrating 101.7 mL of a 0.3500M solution of piperidine (C5H10NH) with a 0.05700M solution of HClO4. The pK of piperidine is 2.89. Calculate the pH of the base solution after the chemist has added 682.9 mL of the HClO solution to it. 4 Note for advanced students: you may assume the final volume equals the initial volume of the solution plus the volume of HClO solution added. 4 Round your answer to 2 decimal places. pH = .11 00. 18 Ararrow_forwardThe following is a two groups (Regular tomato sauce & Salt Reduced Tomato Sauce) of data recorded by a team analysising salt content in tomato sauce using the MOHR titration method: Regular Tomato Sauce Salt Reduced Tomato Sauce 340.0 262.7 QUESTION: For both groups of data provide answers to the calculations attached in the imagearrow_forward7. Concentration and uncertainty in the estimate of concentration (class data) Class mean for sample (Regular) |[Cl-] (mmol/L) class mean Sn za/2 95% Confidence Interval (mmol/L) [Na+] (mg/100 mL) 95% Confidence Interval (mg/100 mL)arrow_forward
- The following is a two groups (Regular tomato sauce & Salt Reduced Tomato Sauce) of data recorded by a team analysising salt content in tomato sauce using the MOHR titration method: Regular Tomato Sauce Salt Reduced Tomato Sauce 223.4 148.7 353.7 278.2 334.6 268.7 305.6 234.4 340.0 262.7 304.3 283.2 244.7 143.6 QUESTION: For both groups of data calculate the answers attached in the image.arrow_forwardGive reason(s) for six from the followings [using equations if possible] a. Addition of sodium carbonate to sulfanilic acid in the Methyl Orange preparation. b. What happened if the diazotization reaction gets warmed up by mistake. c. Addition of sodium nitrite in acidified solution in MO preparation through the diazotization d. Using sodium dithionite dihydrate in the second step for Luminol preparation. e. In nitroaniline preparation, addition of the acid mixture (nitric acid and sulfuric acid) to the product of step I. f. What is the main reason of the acylation step in nitroaniline preparation g. Heating under reflux. h. Fusion of an organic compound with sodium. HAND WRITTEN PLEASEarrow_forwardedict the major products of the following organic reaction: u A + ? CN Some important notes: • Draw the major product, or products, of the reaction in the drawing area below. • If there aren't any products, because no reaction will take place, check the box below the drawing area instead. Be sure to use wedge and dash bonds when necessary, for example to distinguish between major products that are enantiomers. Explanation Check Click and drag to start drawing a structure. Х © 2025 McGraw Hill LLC. All Rights Reserved. Te LMUNDARYarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Chemistry: Principles and PracticeChemistryISBN:9780534420123Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward MercerPublisher:Cengage LearningChemistry by OpenStax (2015-05-04)ChemistryISBN:9781938168390Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark BlaserPublisher:OpenStaxChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage Learning
- Chemistry: An Atoms First ApproachChemistryISBN:9781305079243Author:Steven S. Zumdahl, Susan A. ZumdahlPublisher:Cengage LearningGeneral Chemistry - Standalone book (MindTap Cour...ChemistryISBN:9781305580343Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; DarrellPublisher:Cengage Learning

Chemistry: Principles and Practice
Chemistry
ISBN:9780534420123
Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:Cengage Learning

Chemistry by OpenStax (2015-05-04)
Chemistry
ISBN:9781938168390
Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Publisher:OpenStax

Chemistry
Chemistry
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Cengage Learning

Chemistry: An Atoms First Approach
Chemistry
ISBN:9781305079243
Author:Steven S. Zumdahl, Susan A. Zumdahl
Publisher:Cengage Learning


General Chemistry - Standalone book (MindTap Cour...
Chemistry
ISBN:9781305580343
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Publisher:Cengage Learning
Lanthanoids and its Position in Periodic Table - D and F Block Elements - Chemistry Class 12; Author: Ekeeda;https://www.youtube.com/watch?v=ZM04kRxm6tY;License: Standard YouTube License, CC-BY