
Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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What is the pH of a 0.00010 M HCl? (4)
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- 11.6. Why is rainwater always acidic, even in the absence of polluting gases such as SO3?arrow_forward9. 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 avods rollorarrow_forwardWhat is the pH of a 0.25 M solution of H3PO4? Ka = 7.2 x 10-³ (A) 0.25 (B) 7.2 x 10-3 (C) 0.0018 (D) 0.042 (E) 1.37arrow_forward
- Identify each of the following as an acid or a base: (a) CH3COOH (b) KOH (c) H3PO4 (d) NH3arrow_forward14.14 Vinegar is primarily an aqueous solution of acetic acid. A sample of commercial vinegar contains 5.0 g of acetic acid in 95.0 ml of solution. What is the concentration (in molarity) of commercial vinegar? If the percent ionization is only 3.1% for this acetic acid, what is the pH of the solution?arrow_forward35. Calculate the pH of a solution that is 0.15 M in formic acid (HCOOH) and 0.20 M in sodium formate (HCOONa). The K₂ of formic acid is K₂ = 1.8×10-4. (A) 9.21 (B) 3.87 (C) 4.53 (D) 7.00 (E) 1.15arrow_forward
- 6. The pH of solution A1, solution A2, solution A3 and solution A4 are 1.0, 2.0, 3.0, and 4.0, respectively, which one is the strongest acid? The molarities of the 4 acid solutions are the same. O O (A) A2 (B) A4 (C) A1 (D) A3arrow_forwardCodeine (C13H2,NO3) is a narcotic pain reliever that forms a salt with HCl. What is the pH of 0.045 M codeine hydrochloride? (pK, = 5.80)arrow_forwardMethylamine (CH3NH2) has Kb = 4.4 x 10–4. What is the pH of 0.15 M aqueous solution of methylamine? (A) 1.68 (B) 2.09 (C) 11.91 (D) 13.18arrow_forward
- 14.23 What is the percent ionization and pH of a o.15 M solution of the cyanide ion, CN-?arrow_forward7) What is the percent ionization of a 0.0550 M HCN solution? The K, of HCN is 4.9 X 101º. (0.0094%) HCN (aq) + H20 (1) H;0* (aq) + CN (aq)arrow_forwardDetermine the molarity of a NaOH solution when each of the following amounts of acid neutralizes 25.0 mL of the NaOH solution. (a) 25.0 mL of 0.250 M HNO3 M (b) 20.0 mL of 0.500 M H2SO4 M (c) 23.9 mL of 1.00 M HC1 M (d) 20.0 mL of 0.100 M H3PО4arrow_forward
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