9. What is the pH of a solution whose hydronium ion concentration is 2.5 X 10-8 M? (a) 7.6 (b) 8.0 (c) 2.5 (d) 6.4 (e) 6.0 10. An aqueous solution has a pOH of 9.35, this solution is: (a) Neutral (b) Basic (c) Acidic (d) Impossible - this pOH cannot be reached in an aqueous solution (e) More information is needed. 11. Which is the strongest acid in the provided table below? Acid Acetamide 2-Pyridinamine Alloxanic Acid (a) Acetamide (b) 2-Pyridinamine (c) Alloxanic Acid (d) 4-chlorophenol (e) Quinoxaline pka 0.63 6.82 6.64 4-chlorophenol 9.18 Quinoxaline 0.56 ovods

9. What is the pH of a solution whose hydronium ion concentration is 2.5 X 10-8 M? (a) 7.6 (b) 8.0 (c) 2.5 (d) 6.4 (e) 6.0 10. An aqueous solution has a pOH of 9.35, this solution is: (a) Neutral (b) Basic (c) Acidic (d) Impossible - this pOH cannot be reached in an aqueous solution (e) More information is needed. 11. Which is the strongest acid in the provided table below? Acid Acetamide 2-Pyridinamine Alloxanic Acid (a) Acetamide (b) 2-Pyridinamine (c) Alloxanic Acid (d) 4-chlorophenol (e) Quinoxaline pka 0.63 6.82 6.64 4-chlorophenol 9.18 Quinoxaline 0.56 ovods

Chemistry & Chemical Reactivity

10th Edition

ISBN:9781337399074

Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Chapter16: Principles Of Chemical Reactivity: The Chemistry Of Acids And Bases

Section16.7: Calculations With Equilibrium Constants

Problem 16.7CYU: The weak base, CIO (hypochlorite ion), is used in the form of NaCIO as a disinfectant in swimming...

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The weak base, CIO (hypochlorite ion), is used in the form of NaCIO as a disinfectant in swimming pools and water treatment plants. What are the concentrations of HCIO and OH and the pH of a 0.015 M solution of NaCIO?
(a) 33. Which one of the following statements regarding acid-base property is NOT correct? pH + pOH = 14, for all aqueous solutions The pH of 108 (M) HCl solution is 8 The conjugate base of H₂PO4 is HPO4 ²- H₂SO4 is a strong acid in aqueous solution (b) (c) (d)
A student dissolves 0.0100 mol of an unknown weak base in 100.0 mL of water and titrates the solution with 0.100 MHNO3. After adding 40.0 mL of HNO3, the pH of the resulting solution is 8.00. Calculate the pKb for the weak base.(a) 7.82 (b) 6.18 (c) 8.18 (d) 7.60
Calculate the pH and the pOH of each of the following solutions at 25°C for which the substances ionize completely. (Assume Kw = 1.01 ✕ 10−14.) (a) 0.185 M HCl (b) 0.0131 M NaOH (c) 2.9 M HNO3 (d) 0.0039 M Ca(OH)2
Calculate the pH of a solution when the following quantities of 0.7500 M KOH are added to 60.00 ml of 0.2500 M HNO2. Ka = 7.1 x 10-4 (a) 0.00 ml (b) 15.00 ml (c) 20.00 ml (d) 25.00 ml
A solution at 25 °C has pOH = 10.53. Which of the following statements is or are true?(i) The solution is acidic.(ii) The pH of the solution is 14.00 - 10.53.(iii) For this solution, 3OH-4 = 10-10.53M.(a) Only one of the statements is true.(b) Statements (i) and (ii) are true.(c) Statements (i) and (iii) are true.(d) Statements (ii) and (iii) are true.(e) All three statements are true.
Rank the following aqueous solutions in terms of pH. Why Are they in that order? (a)0.1 M CH3COOH (b)0.1 M H2SO4 (c)0.1 M HNO3 (d)0.1 M CH3COOH + 0.1 M CH3COONa (e)0.1 M HF (f)0.1 M HCl
Calculate the pH of solutions having the following [H+]: (a) 0.0055 M (b) 1.54 x 10-8 M (c) 3.47 M
The hypochlorite ion, ClO-, acts as a weak base. (a) Is ClOa stronger or weaker base than hydroxylamine? (b) When ClO- acts as a base, which atom, Cl or O, acts as the proton acceptor? (c) Can you use formal charges to rationalize your answer to part (b)?
Calculate the molar H3O+ion concentration of a solution that has a pH of (A) 4.31 (B) 13.89 (C) 5.32 (D) 4.48
5. Determine the pH of each solution and classify it as acidic, basic, or neutral. (a) pOH = 8.5 (b) рОН %3D 4.2 (c) pOH = 1.7 (d) pOH = 7.0
(D) None of the above, there are no acids in pure water 7. The [OH-] of a solution is 1 x 10-2 M. Which of the following is correct? (A) The solution is acidic with an [OH] of 1 x 10-12 (B) The solution is basic with a pH of 12 (C) The solution is basic with a pOH of 12 (D) The solution is acidic with a pOH of 2 8. Hvdrohromic acid. HBr. is a strong acid. Hvdrofluoric acid. HE is a weak acid. If vou prenared eaual lluminate Education TM Inc DELL F1 F2 F3 F4 F5 F6 F7 F8 F9 @ # $ 2 3 4 7 8. W R T H C V (0 E