We need at least 10 more requests to produce the answer.
0 / 10 have requested this problem solution
The more requests, the faster the answer.
solve this showing all working for tge quadratic equation there is a rule concerning whether or...
Hey guys, I am having a lot of trouble with my homework. Could you please help? I thumbs up anyone who gives a thorough explanation and shows the work! I really need to understand these concepts! Thank you guys! 1) The Ka for HCN is 4.9 ~ 10-10. What is the value of Kb for CN-? 2) Using the data in the table for 0.10 M aqueous species at 25 °C, which conjugate base below is the weakest base? Explain...
Hey guys, I am having a lot of trouble with my homework. Could you please help? I thumbs up anyone who gives a thorough explanation and shows the work! I really need to understand these concepts! Thanks in advance! 1) The Ka for HCN is 4.9 ~ 10-10. What is the value of Kb for CN-? 2) Using the data in the table for 0.10 M aqueous species at 25 °C, which conjugate base below is the weakest base? Explain...
Hey guys, I am having a lot of trouble with my homework. Could you please help? I thumbs up anyone who gives a thorough explanation and shows the work! I really need to understand these concepts! Thank you! 1) The Ka for HCN is 4.9 ~ 10-10. What is the value of Kb for CN-? 2) Using the data in the table for 0.10 M aqueous species at 25 °C, which conjugate base below is the weakest base? Explain your...
RUVILUULI Q. #1. The equilibrium constant for the auto-ionization of water 2H30 (I) = H3O'(aq) + OH(aq) is 1.0 x 10-4 at 25°C and 3.8 x 10-14 at 40°C. Is the forward process endothermic or exothermic? Need to show your calculation. Ans: exothermic Q. #2. If you have 0.040 M solution two strong acids like HCI and H2SO, which one do you think would have behaves as stronger acids? Explain your answer with ICE table and relevant calculation. K for...
Which of the following solutions would require the quadratic equation to calculate the pH without a substantial error? A. 0.10 M HCl(aq) B. 0.10 M CH3COOH (aq), Ka(CH3COOH) = 1.8 x 10−5 C. 0.10 M KCN(aq), Ka(HCN) = 4.9 x 10−9 D. 0.10 M KHSO4(aq), Ka(HSO4–) = 1.3 x 10−2
Ammonia react with water as shown in the following equation: NH3(aq) + H2O(l) NH4+(aq) + OH-(aq) Kb = 1.77 x 10-5 and Ka = 5.65 x 10-10 a) Calculate the pH of the 0.030 M NH3 solution (Use a labeled ICE table) b) Calculate the pH of the solution at the equivalent point (when equal amount of acid is added. Assume the volume doubles). (Use a labeled ICE table) c) Over which pH range (actual numbers) do you expect...
Quest. 4 (15 pts). Ammonia react with water as shown in the following equation: NH3(aq) + H2O(l) NH4+(aq) + OH(aq) Kb = 1.77 x 10-4 and Ka = 5.65 x 10-10 a) Calculate the pH of the 0.030 M NH solution (Use a labeled ICE table) b) Calculate the pH of the solution at the equivalent point (when equal amount on added. Assume the volume doubles). (Use a labeled ICE table) c) Over which pH range (actual numbers) do you...
You work in a chemistry lab, and are asked to prepare 500 mL of a buffer solution with pH-3.20, The weak acid solution concentration in this buffer should be 0.250 M and salt is a solid. The following steps walk you through a step by step process of this preparation. a. Choose the proper weak acids for the buffer solution Table 1. Ionization constant Ka for some weak acids Name Hydrofluoric acid Nitrous acid Fulminic acid Acetic acid Hypochlorous acid...
QUESTION 9 Chlorous acid has a Ka of 1.1 x 10-2 What is the pH of a 0.90 M solution of chlorous acid? HCIO2 --H* + CO2 You WILL need the quadratic in this problem. For full points, show the following • ICE Table . Ka ratio (show the products over the reactants equal to 1.1 x 10-2 • Show your work solving for x o Use a quadratic calculator to plug in "a", "b", and "e" . Once you...
all please. its okah if its just the answers 18. Calculate the pH of a buffer solution that is 0.410 M in HOCI and 0.050M in NaOCI. [Ka(HOCI) 3.2 x 10* a. 0.39 d. 749 b. 3.94 e) 6.58 19. Which one of these equations represents the reaction of a weak acid with a weak base! a. H'(aq) + OH (aq)- H:O(aq) b. H'(aq)+ CHsNH2(aq)- CHSNH3 (aq) c. OH (aq) + HCN(aq)- H:O(aq) + CN (aq) d) HCN(aq) + CH...