Concept explainers
Interpretation:
The lactic acid (
Concept introduction:
pKa: It is introduced as an index to express the acidity of weak acids, where
In aqueous solution an acid undergoes ionization. The ionization of an acid is can be expressed in terms of equilibrium constant. The quantitative measurement tells about the strength of the acid. Higher the value of
The dissociation constant for the acid is
For simplifications
The lower value of
Want to see the full answer?
Check out a sample textbook solutionChapter 16 Solutions
Bundle: Chemistry & Chemical Reactivity, Loose-Leaf Version, 9th + OWLv2, 4 terms (24 Months) Printed Access Card
- What is the Kw of pure water at 50.0 degrees Celsius, if the pH is 6.630?arrow_forwardThe hydroxide ion concentration of an aqueous solution of 0.429 N acetylsalicylic acid (aspirin), HC9H7O4, is [OH-] = ________ M.arrow_forwardThe hydroxide ion concentration of an aqueous solution of 0.325 M phenol (a weak acid) , C6H5OH, is[OH-] = M.arrow_forward
- How do the components of a conjugate acid—base pair differ from one another4? Give an example of a conjugate acid—base pair to illustrate your answer.arrow_forwardWhat is the freezing point of vinegar, which is an aqueous solution of 5.00% acetic acid, HC2H3O2, by mass (d=1.006g/cm3)?arrow_forwardThe following four diagrams represent aqueous solutions of four different acids with the general formula HA. Which of the four acids is the strongest acid?arrow_forward
- Which of the diagrams in Problem 10-135 represents the substance that is the weakest electrolyte?arrow_forwardConsider a weak organic base (nonelectrolyte) with molar mass 281 g/mol. An aqueous solution of the base has a pH of 8.73 and an osmotic pressure of SS mm Hg at 25C. What is Kb for the weak base?arrow_forwardThe hydroxide ion concentration, [OH-], of an aqueous solution of 0.421 M diethylamine (a weak base with the formula (C2H5)2NH) , Kb = 6.9×10-4, is:arrow_forward
- the conjugate base for C6H4(CO2H)2 is calledarrow_forwardWhat are the solutions to the followin x^(2)+8x+15=0arrow_forwardA 0.751 molar solution of formic acid in water is prepared by a scientist. The Ka of formic acid is 6.2x10-5. What is the percent ionization of the formic acid in that solution?arrow_forward
- Introductory Chemistry: A FoundationChemistryISBN:9781337399425Author:Steven S. Zumdahl, Donald J. DeCostePublisher:Cengage LearningChemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage LearningIntroduction to General, Organic and BiochemistryChemistryISBN:9781285869759Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar TorresPublisher:Cengage Learning
- General, Organic, and Biological ChemistryChemistryISBN:9781285853918Author:H. Stephen StokerPublisher:Cengage Learning