1. Here we have two molecules. First one is the salicylic acid and the second one is the acetyl salicylic acid. You can see the pKa values under the molecules. According to the pKa values Salicylic acid is more acidic. Explain why. COOH COOH COCH 3 Salicylic acid Acetyl Salicylic acid pKa: 2.97 pКa: 3.50

1. Here we have two molecules. First one is the salicylic acid and the second one is the acetyl salicylic acid. You can see the pKa values under the molecules. According to the pKa values Salicylic acid is more acidic. Explain why. COOH COOH COCH 3 Salicylic acid Acetyl Salicylic acid pKa: 2.97 pКa: 3.50

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Similar questions

Acetic acid (pKa = 4.75) is contained in vinegar. 1. Calculate the pH of an 0.1500 M aqueous solution of acetic acid. 2. What is the pKb of the conjugate base of acetic acid, the acetate anion? 3. Calculate the pH of the solution prepared by mixing 0.0500 mol of acetic acid with 0.0150 mol of sodium acetate in a 500.0 mL volumetric flask.
5
Which of the following statement best explain why the acidity of carboxylic acids is greater than those of the alcohols? a. Alcohols behave as neutral compounds in aqueous solution. b. Alcohol has the ability to donate proton to becomes a negative ion called an alkoxide ion, RO– c. When a carboxylic acid donates its proton, it becomes a negatively charged ion, RCOO−, called a carboxylate ion which is more stabilized by resonance. d. The OH group in alcohol is less charged and often more difficult to release electron for chemical reactions.
The pH of an aqueous solution of weak monoprotic acid is 3.15. What is the initial concentration of the acid if the pKa of the acid 5.74? A. 0.657 M B. 0.315 M C. 0.274 M D. 0.387 M E. 0.0576 M
For a certain acid pK = decimal places. pH = 0 4.49. Calculate the pH at which an aqueous solution of this acid would be 2.9% dissociated. Round your answer to 2 X 5
Determine K of the weak base B whose conjugate acid HB* has K₂ 8.3 × 10-4. x 10 Determine the K₂ of the weak acid HA whose conjugate base has K₁ 2.7 × 10-8. x 10
When a 0.013 M aqueous solution of a certain acid is prepared, the acid is 0.73% dissociated. Calculate the acid dissociation constant K of the acid. Round your answer to 2 significant digits. x = 0 x10 X
Complete the following table, which lists information about the measured acid dissociation constants of three unknown weak acids. Note: be sure each number you put in the table has the correct number of significant digits. acid K pK relative strength x10 A ✓ (Choose one) X S ? 1 (strongest) B 2 3 (weakest) с (Choose one) Ba -5 8. × 10 5.89 × 10 -9 7.02 1 0
For the following reaction, K < 1. Classify each of the reactants and products based on their strength as Bronsted-Lowry acids or bases. C₂H5NH+ + C₂H₂O4 HC9H7O4 + C5H5N CyH5NH* HC₂H₂O4 C5H5N C₂H₂O4 Clear All Stronger Bronsted- Lowry acid Weaker Bronsted-Lowry acid Stronger Bronsted- Lowry base Weaker Bronsted-Lowry base
When carbon dioxide gas dissolves in water, it reacts with the water to form carbonic acid. This is why soft drinks have a low pH, and soda water is often recommended as a mild cleaning agent. It is also why there is concern that rising levels of atmospheric carbon dioxide may cause the Earth's oceans to become more acidic. Here is the reaction between carbon dioxide gas and water: H₂O(1) + CO₂(g) H₂CO3(aq) Suppose an engineer decides to study the rate of this reaction. He prepares four reaction vessels with 152.7 g of water and 34.3 g of carbon dioxide gas each. The volume and temperature of each vessel is shown in the table below. Arrange the reaction vessels in decreasing order of initial rate of reaction. In other words, select a "1" next to the vessel in which the engineer can reasonably expect the initial rate of reaction to be highest, a "2" next to the vessel in which the initial rate of reaction would be next highest, and so on. vessel volume temperature A B C D 8.0 L 1.0 L…
For the following A and B reactions between reactant I and II, decide which reactant is the Lewis base and acid (LB/LA), and if they are also Bronsted acids/bases (BA/BB) The correct options for A I: ___ II:___ The correct options for B I: ___ II:___
The polyprotic acid, H3X, has acid dissociation constants Kaj = 5.6×10-1, Ka2 = 2.8×10-3, and Kaz = 1.4x10-4. What is the K, value of the following reaction at 25°C? НаX (ад) + ОН (ад) — нх?-(ад) + Нә0(1) Report your answer to two significant figures using E notation.