Concept explainers
Use the acid dissociation constants in Table 9.3 to determine whether the reactants or products are favored in the following reaction.
More Practice: Try problems 9.57, 9.58.
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General, Organic, and Biological Chemistry - 4th edition
- (pOH of solution A): 7.12 7.11 9.11 6.21 ([H+] of A): 1.3 x 10-7 M 1.3 x 10-11 M 8.4 x 10-14 M 7.8 x 10-4 M 3. 7.6 x 10-8 M 8.4 x 10-14 M 7.8 x 10-4 M 1.3 x 10-11 M 4. 6.88 0.92 10.89 0.99 5. 7.12 1.22 3.11 13.08 6. 1.3 x 10-7 M 0.12 M 1.3 x 10-11 M Solution A is ___ Acidic Basic Neutral Solution B is ____ Acidic Basic Neutral Solution C is ____ Acidic Basic Neutralarrow_forwardWhat is the pH of a 3.40 M solution of HNO₂ (Ka = 4.5 x 10-4)? Your Answer: Answerarrow_forwardWhat is [H30+] if I have a 0.1 M NaOH? This is the correct answer but i don't know how it was derived. Answer: 1.0E-13arrow_forward
- 1 Which of the following statements about acid strength is true? Multiple Choice The stronger the acid, the further the equilibrium lies to the left. The stronger the acid, the smaller the Ka. The stronger the acid, the larger the pka. The stronger the acid, the smaller the pka.arrow_forwardWhat is the pOH of a solution of 0.125 M CH3NH2 and 0.130 M CH3NH3Cl? How would you find a Ka value? Calculate [OH-], [H+], and pH for practicearrow_forward-7 The acid dissociation constant K of alloxanic acid (HC4H₂N₂O) is 2.24 × 10¯7. Calculate the pH of a 3.6M solution of alloxanic acid. Round your answer to 1 decimal place. 78°F pH = 0 Explanation Check X Ś O Searcharrow_forward
- 6 9 What is the pH of a solution with a hydrogen ion concentration of 3.65 X 10-6 M? Your Answer: Answerarrow_forward3atempis left Check my work Be sure to answer all parts. Be sure to reportiyour answer to the correct number of significant figures. Determine Kb of the weak base B whose conjugate acid HB has K, 8.3 x 10. x 10 Determine the K, of the wveak acid HA whose conjugate base has K, 1.9 × 10°. x 10arrow_forwardPre-lab question #3-4: Consider the following equilibrium for nitrous acid, HNO2, a weak acid: HNO2 (aq) + H2O () → H30* (aq) + NO2 (aq) If acid solution is made more dilute, in which direction will the equilibrium shift? A (no effect/right/left)arrow_forward
- The ionization of benzoic acid is represented by this equation. If a 0.045M solution of benzoic acid has an [H3O+] = 1.7*10-3 at equilibrium, what is the Ka of benzoic acid? A) 1.5E4 B) 6.7E-5 C) 7.7E-5 D) 8.4E-1 E) 3.8E-2arrow_forward34 Select the single best answer. Predict the direction that predominates in this reaction: NO₂ (aq) + H₂O(1) ⇒ HNO₂(aq) + OH¯ (aq) The formation of NO₂ (aq) and H₂O (1) is favored. The formation of HNO₂ (aq) and OH(aq) is favored. Cannot be determined. Xarrow_forwardComplete 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 Ka pK. relative strength - 3 7.23 x 10 v (Choose one) A 1 (strongest) 2 - 5 1.4 x 10 3 (weakest) 7.0 (Choose one) Check 2021 McGraw-Hill Education. All Rights Reserved Explanationarrow_forward
- Introduction to General, Organic and BiochemistryChemistryISBN:9781285869759Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar TorresPublisher:Cengage Learning