Chemistry (OER)
2nd Edition
ISBN: 9781947172616
Author: OpenStax
Publisher: OpenStax College
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 14, Problem 112E
Why can we ignore the contribution of water to the concentration of OH- in a solution of the following bases:
0.0784 M C6H5NH2, a weak base.
0.11 M (CH3)3N, a weak base but not the contribution of water to the concentration of H3O+?
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Don't used hand raiting and don't used Ai solution
IX) By writing the appropriate electron configurations and orbital box diagrams briefly EXPLAIN in your own words
each one of the following questions:
a) The bond length of the Br2 molecule is 2.28 Å, while the bond length of the compound KBr is 3.34 Å. The radius of
K✶ is 1.52 Å. Determine the atomic radius in Å of the bromine atom and of the bromide ion.
Br =
Br
b) Explain why there is a large difference in the atomic sizes or radius of the two (Br and Br).
T
When 15.00 mL of 3.00 M NaOH was mixed in a calorimeter with 12.80 mL of 3.00 M HCl, both initially at room temperature (22.00 C), the temperature increased to 29.30 C. The resultant salt solution had a mass of 27.80 g and a specific heat capacity of 3.74 J/Kg. What is heat capacity of the calorimeter (in J/C)? Note: The molar enthalpy of neutralization per mole of HCl is -55.84 kJ/mol.
Chapter 14 Solutions
Chemistry (OER)
Ch. 14 - Write equations that show NH3 as both a conjugate...Ch. 14 - Write equations that show H2PO4- acting both as an...Ch. 14 - Show by suitable net ionic equations that each of...Ch. 14 - Show by suitable net ionic equations that each of...Ch. 14 - Show by suitable net ionic equations that each of...Ch. 14 - Show by suitable net ionic equations that each of...Ch. 14 - What is the conjugate acid of each of the...Ch. 14 - What is the conjugate acid of each of the...Ch. 14 - Identify and label the Bronsted-Lowry acid, its...Ch. 14 - Identify and label the Bronsted-Lowry acid, its...
Ch. 14 - What are amphiprotic species? Illustrate with...Ch. 14 - State which of the following species are...Ch. 14 - State which of the following species are...Ch. 14 - Is the self-ionization of water endothermic or...Ch. 14 - Explain why a sample of pure water at 40 C is...Ch. 14 - The ionization constant for water (Kw) is 2.91014...Ch. 14 - The ionization constant for water (Kw) is...Ch. 14 - Calculate the pH and the pOH of each of the...Ch. 14 - Calculate the pH and the pOH of each of the...Ch. 14 - What are the pH and pOH of a solution of 2.0 M...Ch. 14 - What are the hydronium and hydroxide ion...Ch. 14 - Calculate the hydrogen ion concentration and the...Ch. 14 - Calculate the hydronium ion concentration and the...Ch. 14 - The hydronium ion concentration in a sample of...Ch. 14 - The hydroxide ion concentration in household...Ch. 14 - Explain why the neutralization reaction of a...Ch. 14 - Explain why the neutralization reaction of a weak...Ch. 14 - Use this list of important industrial compounds...Ch. 14 - The odor of vinegar is due to the presence of...Ch. 14 - Household ammonia is a solution of the weak base...Ch. 14 - Explain why the ionization constant, Ka, for H2SO4...Ch. 14 - Explain why the ionization constant, Ka, for HI is...Ch. 14 - Gastric juice, the digestive ?uid produced in the...Ch. 14 - Nitric acid reacts with insoluble copper (II)...Ch. 14 - What is the ionization constant at 25 C for the...Ch. 14 - What is the ionization constant at 25 C for the...Ch. 14 - Which base, CH3NH2 or (CH3)2NH, is the stronger...Ch. 14 - Which is the stronger acid, NH4+ or HBrO?Ch. 14 - Which is the stronger base, (CH3)3N or H2BO3-?Ch. 14 - Predict which acid in each of the following pairs...Ch. 14 - Predict which compound in each of the following...Ch. 14 - Rank the compounds in each of the following groups...Ch. 14 - Rank the compounds in each of the following groups...Ch. 14 - Both HF and HCN ionize in water to a limited...Ch. 14 - The active ingredient formed by aspirin in the...Ch. 14 - What do we represent when we write:...Ch. 14 - Explain why equilibrium calculations are not...Ch. 14 - Are the concentrations of hydronium ion and...Ch. 14 - What two common assumptions can simplify...Ch. 14 - What two common assumptions can simplify...Ch. 14 - Which of the following will increase the percent...Ch. 14 - Which of the following will increase the percent...Ch. 14 - What is the effect on the concentrations of NO2-,...Ch. 14 - What is the effect on the concentration of...Ch. 14 - Why is the hydronium ion concentration in a...Ch. 14 - From the equilibrium concentrations given,...Ch. 14 - From the equilibrium concentrations given,...Ch. 14 - Determine Kb for the nitrite ion, NO2-. In a...Ch. 14 - Determine Ka for hydrogen sulfate ion, HSO4-. In a...Ch. 14 - Calculate the ionization constant for each of the...Ch. 14 - Calculate the ionization constant for each of the...Ch. 14 - For which of the following solutions must we...Ch. 14 - Even though both NH3 and C6H5NH2 are weak bases,...Ch. 14 - Calculate the equilibrium concentration of the...Ch. 14 - Calculate the equilibrium concentration of the...Ch. 14 - Calculate the equilibrium concentration of the...Ch. 14 - Calculate the equilibrium concentration of the...Ch. 14 - Using the Ka value of , place Al(H2O)63+ in the...Ch. 14 - Calculate the concentration of all solute species...Ch. 14 - Propionic acid, C2H5CO2H (Ka=1.34105), is used in...Ch. 14 - White vinegar is a 5.0% by mass solution of acetic...Ch. 14 - The ionization constant of lactic acid,...Ch. 14 - Nicotine, C10H14N2, is a base that will accept two...Ch. 14 - The pH of a 0.20-M solution of HP is 1.92....Ch. 14 - The pH of a 0.15-M solution of HSO4- is 1.43....Ch. 14 - The pH of a 0.10-M solution of caffeine is 11.16....Ch. 14 - Tile pH of a solution of household ammonia, a...Ch. 14 - Determine whether aqueous solutions of the...Ch. 14 - Determine whether aqueous solutions of the...Ch. 14 - Novocaine, C13H21O2N2Cl, is the salt of the base...Ch. 14 - Which of the following concentrations would be...Ch. 14 - Calculate the concentration of each species...Ch. 14 - Calculate the concentration of each species...Ch. 14 - Salicylic acid, HOC6H4CO2H, and its derivatives...Ch. 14 - The ion HTe- is an amphiprotic species; it can act...Ch. 14 - Explain why a buffer can be prepared from a...Ch. 14 - Explain why the pH does not change significantly...Ch. 14 - Explain why the pH does not change significantly...Ch. 14 - What is [H3O+] in a solution of 0.25 M CH3CO2H and...Ch. 14 - What is [H3O+] in a solution of 0.075 M HNO2 and...Ch. 14 - What is [OH-] in a solution of 0.125 M CH3NH2 and...Ch. 14 - What is [OH-] in a solution of 1.25 M NH3 and 0.78...Ch. 14 - What concentration of NH4NO3 is required to make...Ch. 14 - What concentration of NaF is required to make...Ch. 14 - What is the effect on the concentration of acetic...Ch. 14 - What is the effect on the concentration of...Ch. 14 - What will be the pH of a buffer solution prepared...Ch. 14 - Calculate the pH of a buffer solution prepared...Ch. 14 - How much solid NaCH3CO23H2O must be added to 0300...Ch. 14 - What mass of NH4Cl must be added to 0.750 L of a...Ch. 14 - A buffer solution is prepared from equal volumes...Ch. 14 - A 5.36-g sample of NH4Cl was added to 25.0 mL of...Ch. 14 - Which acid in Table 14.2 is most appropriate for...Ch. 14 - Which acid in Table 14.2 is most appropriate for...Ch. 14 - Which base in Table 14.3 is must appropriate for...Ch. 14 - Which base in Table 14.3 is most appropriate for...Ch. 14 - Saccharin, C7H4NSO3H, is a weak acid (Ka=2.1102)....Ch. 14 - What is the pH of 1.000 L of a solution of 100.0 g...Ch. 14 - Explain how to choose the appropriate acid-base...Ch. 14 - Explain why an acid-base indicator changes color...Ch. 14 - Why can we ignore the contribution of water to the...Ch. 14 - Why can we ignore the contribution of water to the...Ch. 14 - Draw a curve for a series of solutions of HF. Plot...Ch. 14 - Draw a curve similar to that shown in Figure 14.23...Ch. 14 - Calculate the pH at the following points in a...Ch. 14 - The indicator dinitrophenol is an acid with a Ka...
Additional Science Textbook Solutions
Find more solutions based on key concepts
8. Studies of DNA support which of the following?
a. Members of the group called australopiths were the first t...
Campbell Biology: Concepts & Connections (9th Edition)
Police Captain Jeffers has suffered a myocardial infarction. a. Explain to his (nonmedically oriented) family w...
Human Physiology: An Integrated Approach (8th Edition)
Use a globe or map to determine, as accurately as possible, the latitude and longitude of Athens, Greece.
Applications and Investigations in Earth Science (9th Edition)
As genetic testing becomes widespread, medical records will contain the results of such testing. Who should hav...
Concepts of Genetics (12th Edition)
43. Sketch the 1s and 2p orbitals. How do the 2s and 3p orbitals differ from the 1s and 2p orbitals?
Introductory Chemistry (6th Edition)
If someone at the other end of a room smokes a cigarette, you may breathe in some smoke. The movement of smoke ...
Campbell Essential Biology with Physiology (5th Edition)
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
- When 15.00 mL of 3.00 M NaOH was mixed in a calorimeter with 12.80 mL of 3.00 M HCl, both initially at room temperature (22.00 C), the temperature increased to 29.30 C. The resultant salt solution had a mass of 27.80 g and a specific heat capacity of 3.74 J/Kg. What is heat capacity of the calorimeter (in J/C)? Note: The molar enthalpy of neutralization per mole of HCl is -55.84 kJ/mol. Which experimental number must be initialled by the Lab TA for the first run of Part 1 of the experiment? a) the heat capacity of the calorimeter b) Mass of sample c) Ti d) The molarity of the HCl e) Tfarrow_forwardPredict products for the Following organic rxn/s by writing the structurels of the correct products. Write above the line provided" your answer D2 ①CH3(CH2) 5 CH3 + D₂ (adequate)" + 2 mited) 19 Spark Spark por every item. 4 CH 3 11 3 CH 3 (CH2) 4 C-H + CH3OH CH2 CH3 + CH3 CH2OH 0 CH3 fou + KMnDy→ C43 + 2 KMn Dy→→ C-OH ") 0 C-OH 1110 (4.) 9+3 =C CH3 + HNO 3 0 + Heat> + CH3 C-OH + Heat CH2CH3 - 3 2 + D Heat H 3 CH 3 CH₂ CH₂ C = CH + 2 H₂ → 2 2arrow_forwardWhen 15.00 mL of 3.00 M NaOH was mixed in a calorimeter with 12.80 mL of 3.00 M HCl, both initially at room temperature (22.00 C), the temperature increased to 29.30 C. The resultant salt solution had a mass of 27.80 g and a specific heat capacity of 3.74 J/Kg. What is heat capacity of the calorimeter (in J/C)? Note: The molar enthalpy of neutralization per mole of HCl is -55.84 kJ/mol.arrow_forward
- Q6: Using acetic acid as the acid, write the balanced chemical equation for the protonation of the two bases shown (on the -NH2). Include curved arrows to show the mechanism. O₂N- O₂N. -NH2 -NH2 a) Which of the two Bronsted bases above is the stronger base? Why? b) Identify the conjugate acids and conjugate bases for the reactants. c) Identify the Lewis acids and bases in the reactions.arrow_forwardQ5: For the two reactions below: a) Use curved electron-pushing arrows to show the mechanism for the reaction in the forward direction. Redraw the compounds to explicitly illustrate all bonds that are broken and all bonds that are formed. b) Label Bronsted acids and bases in the left side of the reactions. c) For reaction A, which anionic species is the weakest base? Which neutral compound is the stronger acid? Is the forward or reverse reaction favored? d) Label Lewis acids and bases, nucleophiles and electrophiles in the left side of the reactions. A. 용 CH3OH я хон CH3O OH B. HBr CH3ONa NaBr CH3OHarrow_forwardpotential energy Br b) Translate the Newman projection below to its wedge-and-dash drawing. F H. OH CH3 CI c) Isopentane (2-methylbutane) is a compound containing a branched carbon chain. Draw a Newman projection of six conformations about the C2-C3 bond of isopentane. On the curve of potential energy versus angle of internal rotation for isopentane, label each energy maximum and minimum with one of the conformations. 0° 。 F A B D C angle of internal rotation E F 360° (=0°) JDownlarrow_forward
- Q7: Identify the functional groups in these molecules a) CH 3 b) Aspirin: HO 'N' Capsaicin HO O CH3 CH 3arrow_forwardQ2: Name the following alkanesarrow_forward1. Complete the following table in your laboratory notebook. Substance Formula Methanol CH3OH Ethanol C2H5OH 1-Propanol C3H7OH 1-Butanol C4H9OH Pentane C5H12 Hexane C6H14 Water H₂O Acetone C3H60 Structural Formula Molecular Weight (g/mol) Hydrogen Bond (Yes or No)arrow_forward
- Q1: Compare the relative acidity in each pair of compounds. Briefly explain. (a) CH3OH vs NH 3 (b) HF vs CH3COOH (c) NH3 vs CH4 (d) HCI vs HI (e) CH3COOH vs CH3SH (f) H₂C=CH2 vs CH3 CH3 (g) compare the acidity of the two bolded hydrogens O. H N- (h) compare the acidity of the two bolded hydrogens, draw resonance structures to explain H H Harrow_forwardQ3: Rank the following molecules in order of decreasing boiling point: (a) 3-methylheptane; (b) octane; (c) 2,4-dimethylhexane; (d) 2,2,4-trimethylpentane.arrow_forwardQ5: Conformations of Alkanes a) Draw a Newman Projection of the compound below about the C2-C3 bond. H3C Cli... H IIIH Br CH3arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Chemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage Learning
ChemistryChemistryISBN: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 Learning
Chemistry for Engineering StudentsChemistryISBN:9781337398909Author:Lawrence S. Brown, Tom HolmePublisher:Cengage Learning
Chemistry: Principles and PracticeChemistryISBN:9780534420123Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward MercerPublisher:Cengage Learning
Chemistry: Principles and Reactions
Chemistry
ISBN:9781305079373
Author:William L. Masterton, Cecile N. Hurley
Publisher:Cengage Learning
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
Chemistry for Engineering Students
Chemistry
ISBN:9781337398909
Author:Lawrence S. Brown, Tom Holme
Publisher:Cengage Learning
Chemistry: Principles and Practice
Chemistry
ISBN:9780534420123
Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:Cengage Learning
General Chemistry | Acids & Bases; Author: Ninja Nerd;https://www.youtube.com/watch?v=AOr_5tbgfQ0;License: Standard YouTube License, CC-BY