Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Related questions
Concept explainers
Question
Explain step by step
Transcribed Image Text:Ka for acetic acid, CH3COOH, is 1.80×10-5.
Ka for hydrofluoric acid, HF, is 7.20×10-4.
Ką for phenol (a weak acid), C6H5OH, is 1.60×10-10.
What is the formula for the strongest conjugate base? CH₂OH
Expert Solution
arrow_forward
Step 1
Given data :
Ka for acetic acid, CH3COOH, is 1.80×10-5
Ka for hydrofluoric acid, HF, is 7.20×10-4
Ka for phenol (a weak acid), C6H5OH, is 1.60×10-10
Step by stepSolved in 3 steps
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
- 15. name one factor that can increase the success of reactant collisions. explain how it increases the reaction rate.arrow_forward39arrow_forwardWhich of the following statements is the best explanation of how activation energy affects the rate of a chemical reaction? A. A high activation energy means molecules have less kinetic energy and hence rate of reaction will be slower. B. A high activation energy means molecules must have more kinetic energy to overcome it, and hence rate of reaction will be faster. C. A high activation energy means molecules have a lot of kinetic energy and hence rate of reaction will be faster. D. A high activation energy means molecules must have less kinetic energy to overcome it, and hence rate of reaction will be slower. E. A high activation energy means molecules must have more kinetic energy to overcome it, and hence rate of reaction will be slower.arrow_forward
- B. Rates of reaction are typically measured as the change of concentration per unit time. Some typical units of concentration are: M, mM, pM, µM, nM. Some typical units of time are: years, days, hr, s, ms, ps, µs, and ns. For each reaction, suggest a reasonable unit of measure for the rate of reaction. a. The combustion of gasoline. b. The transformation of organic material into crude oil. Chemical change involved with memory in the human brain. с. d. The rusting of an iron nail. 9. Why would a scientist use nM/ps instead of M/s? - 112 -arrow_forwardThe change in temperature from 20°C to 10°C is found to halve the rate of a particular chemical reaction. How did the change in temperature affect the reaction? Periodic Table and Datasheet O The number of molecules colliding with sufficient energy to react increased. O The number of molecules colliding with sufficient energy to react decreased. O The activation energy increased. O The activation energy decreased.arrow_forwardWhy do most chemical reactions do not occur in a single step?arrow_forward
- Reaction rate increases if reactant is added. O True O Falsearrow_forwardChemistry 2. The following experimental data are obtained for the decomposition of nitrogen dioxide: 2 NO2(g) → 2 NO(g) + O2(g) ⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯ Time, s [NO2], M ln[NO2], [NO2]-1, M-1 ⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯ 0 10.0 x 10-3 -4.605 1.00 x 102 60 6.83 x 10-3 -4.986 1.46 x 102 120 5.18 x 10-3 -5.263 1.93 x 102 180 4.18 x 10-3 -5.477 2.39 x 102 240 3.50 x 10-3 -5.655 2.86 x 102 300 3.01 x 10-3 -5.806 3.32 x 102 ⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯ Plot a graph of ln[NO2] versus t and 1/[NO2] versus t. Determine the decomposition of NO2 follows a first order or second order rate law with respect to [NO2].arrow_forwardTime (s) C ΑΣΦ 50 100 150 200 0 250 Concentration (M) 0.02 0.04 0.06 0.08 0.10 0.12 0.14 20 0.16 A B •C Write the balanced reaction that corresponds to the data in graph. Express your answer as a chemical equation. 8arrow_forward
- The reversible chemical process to form phosphorous pentachloride, PCI,(g), is carried out and the concentrations of the starting substances and products are carefully monitored. Which of the following is true at 200 seconds? Cl₂(g) + PCI3(g) → PC15(g) Time (s) [Cl₂] mol/L [PCI3] mol/L [PCI,] mol/L 0 2.00 2.00 0.00 40 1.80 1.80 0.20 80 1.60 1.60 0.40 120 1.50 1.50 0.50 160 1.42 1.42 0.58 200 1.42 1.42 0.58 240 1.42 1.42 0.58 The rate of the forward process is greater than the rate of the reverse process. The rate of the reverse process is zero. The rate of the forward process is equal to the rate of the reverse process. The rate of the forward process is less than the rate of the reverse process.arrow_forwardAccording to collision theory, the molecules must have enough energy when they collide to cause chemical bonds to break and form. In other words, for a reaction to happen. What do we call the minimum energy required to initiate a chemical reaction? Choose from the choices below: Activation energy Collision energy Heat energy Reaction energyarrow_forwardTypical Chemical Potential Energy (PE) Diagram for an Exothermic Reaction A catalyst provides an alternate pathway for a reaction to occur. The alternate pathway has a lower activation energy (AE), meaning that the reactant molecules do not need to collide with as much energy in order for a reaction to occur, so more collisions result in a reaction, so the reaction rate is faster. Chemical Potential Energy (Enthalpy) Note that adding a catalyst does not change the amount of energy released (AH) for the reaction. Activation Energy (AE) with a catalyst PE of Reactants AH PE of Products Rxn Progress What effect does a catalyst have on the stoichiometry of the reaction? What effect does the catalyst have on the mechanism of a reaction? AE wlo a catalystarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- ChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage Learning
ChemistryChemistryISBN:9781259911156Author:Raymond Chang Dr., Jason Overby ProfessorPublisher:McGraw-Hill Education
Principles 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 Education
Chemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage Learning
Elementary Principles of Chemical Processes, Bind...ChemistryISBN:9781118431221Author:Richard M. Felder, Ronald W. Rousseau, Lisa G. BullardPublisher:WILEY
Chemistry
Chemistry
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Cengage Learning
Chemistry
Chemistry
ISBN:9781259911156
Author:Raymond Chang Dr., Jason Overby Professor
Publisher:McGraw-Hill Education
Principles of Instrumental Analysis
Chemistry
ISBN:9781305577213
Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:Cengage Learning
Organic Chemistry
Chemistry
ISBN:9780078021558
Author:Janice Gorzynski Smith Dr.
Publisher:McGraw-Hill Education
Chemistry: Principles and Reactions
Chemistry
ISBN:9781305079373
Author:William L. Masterton, Cecile N. Hurley
Publisher:Cengage Learning
Elementary Principles of Chemical Processes, Bind...
Chemistry
ISBN:9781118431221
Author:Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:WILEY