
Concept explainers
Interpretation:
The meaning for the statement that balanced chemical equation describes the stoichiometry of the reaction needs to be explained.
Concept Introduction:
- A
chemical reaction is represented in terms of a chemical equation with the reactants on the left and the products on the right - The coefficient of a balanced chemical equation i.e. the stoichiometry gives the amount of reactants and products involved in the reaction.

Answer to Problem 13A
A balanced chemical equation describes the amounts of reactants and products in terms of the
Explanation of Solution
'Stoichiometry' is a term that refers to the amount or measure of elements. For balanced chemical equations, 'stoichiometry' helps to establish a correct relation between the amounts of reactants and products, in terms of a mole-mole ratio. Hence, it can be used to determine the amount of products formed from a known quantity of reactants.
For example consider the formation of ammonia (NH3) from N2 and H2. The reaction is:
The balanced equation is:
As per the reaction stoichiometry:
1 mole of N2 reacts with 3 moles of H2 to form 2 moles of NH3
Therefore, the relative amounts of reactants and products can be identified from the reaction stoichiometry.
Chapter 9 Solutions
World of Chemistry, 3rd edition
- Identify if their reaction is most likely SN1 or SN2 mechanism.arrow_forwardDraw the products formed when the following alkene is treated with 03 followed by Zn, H₂O. Be sure to answer all parts. draw structure ... smaller molar mass product draw structure ... larger molar mass productarrow_forwardComplete the two step reaction show the mechanism for all steps.arrow_forward
- Complete the reaction. Not the mechanism.arrow_forwardDraw the mechanism using the arrows on conventions, including all formal charges and correct arrows. If stereochemical distinction can be made they should be included in the structure of the products.arrow_forwardDraw the epoxide formed when the following alkene is treated with mCPBA. Click the "draw structure" button to launch the drawing utility. draw structure ...arrow_forward
- Rank each of the following substituted benzene molecules in order of which will react fastest (1) to slowest (4) by electrophilic aromatic substitution. Explanation Check CF3 (Choose one) OH (Choose one) H (Choose one) (Choose one) © 2025 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacyarrow_forwardIdentifying electron-donating and electron-withdrawing effects For each of the substituted benzene molecules below, determine the inductive and resonance effects the substituent will have on the benzene ring, as well as the overall electron-density of the ring compared to unsubstituted benzene. Molecule Inductive Effects Resonance Effects Overall Electron-Density CF3 O donating O donating O electron-rich O withdrawing withdrawing O no inductive effects O no resonance effects O electron-deficient O similar to benzene OCH3 Explanation Check O donating O donating ○ withdrawing withdrawing O no inductive effects no resonance effects electron-rich electron-deficient O similar to benzene Х © 2025 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Centerarrow_forwardThe acid-base chemistry of both EDTA and EBT are important to ensuring that the reactions proceed as desired, thus the pH is controlled using a buffer. What percent of the EBT indicator will be in the desired HIn2- state at pH = 10.5. pKa1 = 6.2 and pKa2 = 11.6 of EBTarrow_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





