18) Which of the following is TRUE? 18) A) A basic solution does not contain H3O+...
Determine the pH of a 0.188 M NH3 solution at 25°C. The Kb of NH3 is 1.76 × 10-5.A) 2.740 B) 5.480 C) 8.520 D) 12.656 E) 11.260
20) Determine the pH of a 0.188 M NH3 solution at 25°C. The K of NH3 is 1.76 x 10-5. 20) B) 12.656 A) 5.480 C) 8.520 D) 11.260 E) 2.740
Can anyone solve question 32? A basic solution does not contain H30+ A neutral solution does not contain any H3O+ or OH- A neutral solution contains [H20] - [H30-1 In a neutral solution the pH must equal 7 Question 31 1 pts ho What is the concentration of hydroxide ions in pure water at 35.0°C. if Kw at this temperature is 1.87 x 10-14? (show work on given page) Question 32 1 pts Calculate the concentration of H30" in a...
Instructions: Determine if each solution is acidic, basic, or neutral. [H3O+] = 1 x 10-10 M; [OH-] = 1 x 10-4 M [H3O+] = 1 x 10-7 M; [OH-] = 1 x 10-7 M [H3O+] = 1 x 10-1 M; [OH-] = 1 x 10-13 M [H3O+] = 1 x 10-13 M; [OH-] = 1 x 10-1 M Instructions: Calculate [OH-] given [H3O+] in each aqueous solution and classify the solution as acidic or basic. [H3O+] = 2.6 x 10-3...
1. Calculate the concentration of H3O+ for an aqueous solution with a pH of 1.2 A) 6.3 x 10-7M B ) 1.6 x 108 M. C) 1.0 x 10-14 M. D) 6.20 x 10-2 M E) 4.0 x 10-4M 2. Calculate the concentration of OH- for an aqueous solution with a pH of 13.8. A) 0.64 M B) 4.0 x 10-5M C) 1.5 x 10-5M D) 1.0 x 10-14 M E) 2.5 x 10-10 M 3. Which of the following...
Suppose a solution has a H3O+ concentration of 1.00x10-7 mM. Which of the following is true concerning this solution? a. it is an acidic solution b. it is an basic solution c. it is an neutral solution
9. Consider a 0.15 M solution of H2SO4. Which of the following statements is NOT true? A) This solution would turn litmus to red. B) This solution could neutralize a base. C) This solution has a pH of 11.20. D) This solution could dissolve metal. E) none of the above 10. What is the concentration of the hydronium [Halo ons in a neutral solution? 11. What is the concentration of hydronium ions in an acidic solution? A) 0.0 M B)...
Calculate the pH of each solution given the following [H3O+] or [OH−] values. a)[H3O+] = 4.0×10−4 M Express your answer using two decimal places. b)[H3O+] = 8.0×10−9 M c)[OH−] = 7.0×10−5 M d)[OH−] = 4.5×10−11 M e)[H3O+] = 8.0×10−8 M f)[OH−] = 8.6×10−4 M
25. Which of the following statements is incorrect? a. A basic solution has a pH > 7. b. An acidic solution has [H3O+]> [OH ). C. A Lewis base acts as an electron pair acceptor. d. Water acts as both a Brønsted-Lowry acid and base. e. A strong acid dissociates completely in solution. What is the pH of a buffer prepared from 0.80 M ascorbic acid, H2C6H606, and 0.50 N sodium ascorbate, NaHC6H6O6? The Ka of ascorbic acid is 6.8...
16. Which of the following is true when the pH of a solution is 7? (a there is no HO present Cthere is no OH present b. [Ho]> [OH- d. [HO]-[OH- 17. According to the Ideal Gas Law, when the moles of gas and the temperature of the gas are kept constant, then the volume of the gas will. . . .? 4 vary directly with pressure b. vary inversely with pressure c. vary independently of pressure d. vary directly...