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Concept explainers
(a)
Interpretation:
The authenticity of the given statements is to be determined.
Concept introduction:
The process of conversion of metal to its more stable chemical form like Hydroxide, Oxide or Sulphide is known as corrosion. Corrosion in case of Iron is known as rusting. The process of corrosion leads to the destruction of the metal.
To determine: The authentication of the given statement, “Corrosion is an example of an electrolytic process”.
The given statement is correct.
(b)
Interpretation:
The authenticity of the given statements is to be determined.
Concept introduction:
The process of conversion of metal to its more stable chemical form like Hydroxide, Oxide or Sulphide is known as corrosion. Corrosion in case of Iron is known as rusting. The process of corrosion leads to the destruction of the metal.
To determine: The authentication of the given statement, “Corrosion of steel involves the reduction of Iron coupled with the oxidation of oxygen”.
The given statement is incorrect.
(c)
Interpretation:
The authenticity of the given statements is to be determined.
Concept introduction:
The process of conversion of metal to its more stable chemical form like Hydroxide, Oxide or Sulphide is known as corrosion. Corrosion in case of Iron is known as rusting. The process of corrosion leads to the destruction of the metal.
To determine: The authentication of the given statement, “Steel rusts more easily in the dry (arid) Southwest states than in the humid Midwest states”.
The given statement is incorrect.
(d)
Interpretation:
The authenticity of the given statements is to be determined.
Concept introduction:
The process of conversion of metal to its more stable chemical form like Hydroxide, Oxide or Sulphide is known as corrosion. Corrosion in case of Iron is known as rusting. The process of corrosion leads to the destruction of the metal.
To determine: The authentication of the given statement, “Salting roads in the winter has the added benefit of hindering the corrosion of steel”.
The given statement is incorrect.
(e)
Interpretation:
The authenticity of the given statements is to be determined.
Concept introduction:
The process of conversion of metal to its more stable chemical form like Hydroxide, Oxide or Sulphide is known as corrosion. Corrosion in case of Iron is known as rusting. The process of corrosion leads to the destruction of the metal.
To determine: The authentication of the given statement, “The key to cathodic protection is to connect via a wire a metal more easily oxidized than Iron to the steel surface to be protected”.
The given statement is correct.
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Chapter 17 Solutions
EBK CHEMISTRY: AN ATOMS FIRST APPROACH
- Explanation O Conjugated Pi Systems Deducing the reactants of a Diels-Alder reaction Can the molecule on the right-hand side of this organic reaction be made in good yield from no more than two reactants, in one step, by moderately heating the reactants? ? Δ If your answer is yes, then draw the reactant or reactants in the drawing area below. You can draw the reactants in any arrangement you like. • If your answer is no, check the box under the drawing area instead. Click and drag to start drawing a structure. Xarrow_forwardDiels Alder Cycloaddition: Focus on regiochemistry (problems E-F) –> match + of thedienophile and - of the diene while also considering stereochemistry (endo).arrow_forwardHELP! URGENT! PLEASE RESOND ASAP!arrow_forward
- Question 4 Determine the rate order and rate constant for sucrose hydrolysis. Time (hours) [C6H12O6] 0 0.501 0.500 0.451 1.00 0.404 1.50 0.363 3.00 0.267 First-order, k = 0.210 hour 1 First-order, k = 0.0912 hour 1 O Second-order, k = 0.590 M1 hour 1 O Zero-order, k = 0.0770 M/hour O Zero-order, k = 0.4896 M/hour O Second-order, k = 1.93 M-1-hour 1 10 ptsarrow_forwardDetermine the rate order and rate constant for sucrose hydrolysis. Time (hours) [C6H12O6] 0 0.501 0.500 0.451 1.00 0.404 1.50 0.363 3.00 0.267arrow_forwardDraw the products of the reaction shown below. Use wedge and dash bonds to indicate stereochemistry. Ignore inorganic byproducts. OSO4 (cat) (CH3)3COOH Select to Draw ઘarrow_forward
- Calculate the reaction rate for selenious acid, H2SeO3, if 0.1150 M I-1 decreases to 0.0770 M in 12.0 minutes. H2SeO3(aq) + 6I-1(aq) + 4H+1(aq) ⟶ Se(s) + 2I3-1(aq) + 3H2O(l)arrow_forwardProblem 5-31 Which of the following objects are chiral? (a) A basketball (d) A golf club (b) A fork (c) A wine glass (e) A spiral staircase (f) A snowflake Problem 5-32 Which of the following compounds are chiral? Draw them, and label the chirality centers. (a) 2,4-Dimethylheptane (b) 5-Ethyl-3,3-dimethylheptane (c) cis-1,4-Dichlorocyclohexane Problem 5-33 Draw chiral molecules that meet the following descriptions: (a) A chloroalkane, C5H11Cl (c) An alkene, C6H12 (b) An alcohol, C6H140 (d) An alkane, C8H18 Problem 5-36 Erythronolide B is the biological precursor of erythromycin, a broad-spectrum antibiotic. How H3C CH3 many chirality centers does erythronolide B have? OH Identify them. H3C -CH3 OH Erythronolide B H3C. H3C. OH OH CH3arrow_forwardPLEASE HELP! URGENT! PLEASE RESPOND!arrow_forward
- 2. Propose a mechanism for this reaction. ہلی سے ملی N H (excess)arrow_forwardSteps and explanationn please.arrow_forwardProblem 5-48 Assign R or S configurations to the chirality centers in ascorbic acid (vitamin C). OH H OH HO CH2OH Ascorbic acid O H Problem 5-49 Assign R or S stereochemistry to the chirality centers in the following Newman projections: H Cl H CH3 H3C. OH H3C (a) H H H3C (b) CH3 H Problem 5-52 Draw the meso form of each of the following molecules, and indicate the plane of symmetry in each: OH OH (a) CH3CHCH2CH2CHCH3 CH3 H3C. -OH (c) H3C CH3 (b) Problem 5-66 Assign R or S configurations to the chiral centers in cephalexin, trade-named Keflex, the most widely prescribed antibiotic in the United States. H2N H IHH S Cephalexin N. CH3 CO₂Harrow_forward
- Introductory Chemistry: A FoundationChemistryISBN:9781285199030Author:Steven S. Zumdahl, Donald J. DeCostePublisher:Cengage LearningChemistry: An Atoms First ApproachChemistryISBN:9781305079243Author:Steven S. Zumdahl, Susan A. ZumdahlPublisher:Cengage Learning
- General 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 LearningIntroductory Chemistry: A FoundationChemistryISBN:9781337399425Author:Steven S. Zumdahl, Donald J. DeCostePublisher:Cengage LearningChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage Learning
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