1. Calculate the concentration of H3O+ for an aqueous solution with a pH of 1.2 A)...
10. For an aqueous solution labeled "0.10 M potassium bromide," A) the pH is greater than 7. B) the pH = 13. D) the pH is less than 7. E) the pH = 7. C) the pH = 1. 11. For a 0.10 M solution of a weak acid, HA, with pKa = 6, which of the following is true? A) [HA] =[A-] B) [HA] does not equal [H3O+] C) [HA] =[H3O] D) [HA] = K E) [HA] = 0...
Calculate the concentration of H3O for an aqueous solution with a pH of 6.20. A) 6.3 x 10-7 M E) 4.0 x 10 M 1. B) 1.6 x 10 M C) 1.0x 10-14 M D) 6.20 x 1014 M 2. The pH of a 0.010 M aqueous solution of Ca(OH)2 is A) 11.70 B) 12.00 C) 12.30 E) 1.70 D) 12.60 alution with a nH of 9.60. for an aqueous solution with a pH of 9.60. C) 1.5 x 10-5...
Order these species by increasing concentration of H3O+ in a 1.0 M aqueous solution. (From the solution with the least hydronium concentration to the solution with the most hydronium concentration) H2CO3, NH4+, OH-, HCO3-, NH3, H2O H2CO3, NH4+, OH-, HCO3-, NH3, H2O H2O, H2CO3, NH4+, OH-, HCO3-, NH3 OH-, NH3, HCO3-, H2O, NH4+, H2CO3 None of the answer choices are correct.
Determine the ammonia concentration of an aqueous solution that has a pH of 11.30. The equation for the dissociation of NH3 (Kb = 1.8 × 10-5) is below: Determine the ammonia concentration of an aqueous solution that has a pH of 11.30. The equation for the dissociation of NH3 (Kb = 1.8 × 10-5) is below: a)9.0 × 10-3 mol L-1 b)2.7 mol L-1 c)0.22 mol L-1 d)2.0 × 10-3 mol L-1 NH3(aq) + H20(1) = NH4+(aq) + OH-(aq) NH3(aq)...
1.Calculate the pH of each solution and indicate whether the solution is acidic or basic. A. [H3O+] = 1.8 x 10-4M B.[H3O-] =7.2 x 10-9M 2.Calculate the [OH-] in each solution and determine whether the solution is acidic =, basic, or neutral. A. [H3O+] = 7.5 x 10-5M B. [H3O+] = 1.5 x 10-9M C.[H3O+] = 1.0 x 10-7M 3. Write a molecular equation for the neutralization reaction between aqueous HCI and aqueous Ca(OH)2?
16. Determine the [H3O+] concentration in a 0.169 M NaOH solution. A) 0.338 M B ) 0.169 M C) 5.92 x 10-14 M. D) 2.96 x 10-14 M. E) 0.298 M B. p 17. A solution is prepared by adding 100 mL of 0.4M HNO2 to 100 mL of 0.5 M KNO2. What is the best answer to the solution pH? A. pH >pka B. pH <pka C. It is a buffer, pH = pka D. pH = pKb E....
If the pH of the solution is 2.6, what is the [H3O+]? If the pH of the solution is 2.6, what is the [OH?]? If the [H3O+] in a solution is 2×10?5M, what is the [OH?]? If the [H3O+] in a solution is 2×10?5M, what is the pH of the solution? If the [H3O+] in a solution is 1×10?12M, what is the [OH?]? If the [H3O+] in a solution is 1×10?12M, what is the pH of the solution? If the...
An aqueous solution of ammonia is prepared (ammonia is weak base). How can we achieve the condition where [NH4+] = [NH3]? NH3 (aq) + H2O (l)-----OH– (aq) + NH4+(aq) A) By decreasing the pH. B) By increasing the pH. C) By heating the solution. D) By diluting the solution with water. E) By concentrating the solution.
Which of the following 0.10 M aqueous solutions gives the highest pH? A) CH3COOH (pKa = 4.75) B) HF (PK:= 3.45) C) H3PO4 (pKal = 2.12) D) HCIQ (Ka=2.00) E) Since all are acids, the pH is the same for all solutions. 5. Which one of the following salts gives an acidic aqueous solution? A) CsNO3 B) CaCl2C ) LiF D) Cr(CIO4)3 E) NaCH3CO2 6. 7. All of the following are strong acids except A) HCIQB) HC104 C) HI D)...
Calculate [H3O+] in the following aqueous solution at 25 ∘C: [OH−]= 1.0×10−9 M . Calculate [H3O+] in the following aqueous solution at 25 ∘C: [OH−]= 2.3×10−2 M . Calculate [H3O+] in the following aqueous solution at 25 ∘C: [OH−]= 6.1×10−12 M . Classify the solutions as acidic or basic. [OH−]=1.0×10−9 M[OH−]=1.0×10−9 M [OH−]=2.3×10−2 M[OH−]=2.3×10−2 M [OH−]=6.1×10−12 M[OH−]=6.1×10−12 M