
Concept explainers
(a)
Interpretation:
When 275 g of sulfur is burned in excess of oxygen, the heat evolved for the given reaction needs to be calculated.
Concept Introduction:
Mole is the amount of the substance that contains the same number of particles or atoms or molecules. Molar mass is defined as an average
(a)

Answer to Problem 30A
Heat evolved = 2536.72 kJ
Explanation of Solution
The given reaction is shown below:
The calculation of moles is shown below:
The calculation of heat evolved is shown below:
(b)
Interpretation:
When 25 mol of sulfur is burned in excess oxygen, the heat evolved for the given reaction needs to be determined.
Concept Introduction:
Heat is evolved in the exothermic reaction whereas heat is absorbed in the endothermic reaction.
(b)

Answer to Problem 30A
Heat evolved = 7400 kJ
Explanation of Solution
The given reaction is shown below:
The calculation of heat evolved is shown below:
(c)
Interpretation:
When 150 g of sulfur dioxide is produces, the heat evolved for the given reaction needs to be determined.
Concept Introduction:
Mole is the amount of the substance that contains the same number of particles or atoms or molecules. Molar mass is defined as an average mass of atoms present in the chemical formula. It is the sum of the atomic masses of all the atoms present in the chemical formula of any compound.
(c)

Answer to Problem 30A
Heat evolved = 692.64 kJ
Explanation of Solution
The given reaction is shown below:
The calculation of moles is shown below:
The calculation of heat evolved is shown below:
Chapter 10 Solutions
World of Chemistry
- Indicate the products obtained if 2,2-dimethylpropanal and acetaldehyde are mixed with sodium ethoxide in ethanol.arrow_forwardIndicate the products obtained if 2,2-dimethylpropanal and acetaldehyde are reacted with sodium ethoxide in ethanol.arrow_forward2,2-Dimethylpropanal and acetaldehyde are reacted with sodium ethoxide in ethanol. Indicate the products obtained.arrow_forward
- Add conditions above and below the arrow that turn the reactant below into the product below in a single transformationADS fint anditions 百 Abl res condinese NC ง Add on condtions 1.0 B H,N.arrow_forward3. Provide all the steps and reagents for this synthesis. OHarrow_forwardSteps and explanationarrow_forward
- Steps and explanations please.arrow_forwardSteps on how to solve. Thank you!arrow_forward3. Name this ether correctly. H₁C H3C CH3 CH3 4. Show the best way to make the ether in #3 by a Williamson Ether Synthesis. Start from an alcohol or phenol. 5. Draw the structure of an example of a sulfide.arrow_forward
- 1. Which one(s) of these can be oxidized with CrO3 ? (could be more than one) a) triphenylmethanol b) 2-pentanol c) Ethyl alcohol d) CH3 2. Write in all the product(s) of this reaction. Label them as "major" or "minor". 2-methyl-2-hexanol H2SO4, heatarrow_forward3) Determine if the pairs are constitutional isomers, enantiomers, diastereomers, or mesocompounds. (4 points)arrow_forwardIn the decomposition reaction in solution B → C, only species C absorbs UV radiation, but neither B nor the solvent absorbs. If we call At the absorbance measured at any time, A0 the absorbance at the beginning of the reaction, and A∞ the absorbance at the end of the reaction, which of the expressions is valid? We assume that Beer's law is fulfilled.arrow_forward
- ChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage LearningChemistryChemistryISBN:9781259911156Author:Raymond Chang Dr., Jason Overby ProfessorPublisher:McGraw-Hill EducationPrinciples of Instrumental AnalysisChemistryISBN:9781305577213Author:Douglas A. Skoog, F. James Holler, Stanley R. CrouchPublisher:Cengage Learning
- Organic ChemistryChemistryISBN:9780078021558Author:Janice Gorzynski Smith Dr.Publisher:McGraw-Hill EducationChemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage LearningElementary Principles of Chemical Processes, Bind...ChemistryISBN:9781118431221Author:Richard M. Felder, Ronald W. Rousseau, Lisa G. BullardPublisher:WILEY





