4. For which of the following 0.010 M diprotic acids would the second dissociation affect the...
A diprotic acid, H2A, has acid dissociation constants of Kai = 3.52 x 10-4 and Ka2 = 2.03 × 10-11 . Calculate the pH and molar concentrations of H2A, HA, and A2- at equilibrium for each of the solutions. A 0.206 M solution of H,A. pH = H2A] HA1 A 0.206 M solution of NaHA pH- [H2A] = [HA-] = A 0.206 M solution of Na,A. pH- [H2A] EA T [A21
A diprotic acid, H2A, has acid dissociation constants of Ka1=1.01×10−4 and Ka2=4.08×10−12. Calculate the pH and molar concentrations of H2A, HA−, and A2−at equilibrium for each of the solutions. A diprotic acid, H, A, has acid dissociation constants of Kal = 1.01 x 104 and K22 = 4.08 x 10-12. Calculate the pH and molar concentrations of H, A, HA, and A? at equilibrium for each of the solutions. A 0.176 M solution of H, A. pH= pH = 1...
just trying to check my answer to see if it was correct :) Which of the following solutions would have the highest pH? Assume that they are all 0.10 M in acid at 25°C. The acid is followed by its ka value. a. HOCI, 2.9 108 Hoci H ou' HCH,O, 1.3 x 10-10 HNO2, 4.6 x 104 HCHO, 1.8 * 104 HCIO, 1.1 x 102
Question 1 2 pts Which of the following acids should be used to prepare a buffer with a pH of 9.3? OHBrO, K; -2.3 x 100 OCH,CO2H, K, - 1.8 10-5 HCO,H, K, - 1.7 x 104 O HCN, K, = 4,9 x 10:10
12. Consider the acid dissociation constants () shown below. Which of the following is the strongest base? Acid HNO99) HCHO og) HCIO(ag) HCNag) K. 4.6 x 10+ 1.8 x 10 2.9 x 10+ 4.9 X 10-10 (a) NO, (b) CHO (c) Cio (d) CN (e) HCHO 13. Pick the stronger base from each pair. NO or NO CIO or CIO: For CI (a) F, NO2, CIO, (b) F, NO,, CIO." (c) F, NO, CIO, (d) CI, NO, CIO (e) CI,...
Part 4: Calculating pH values as a Titration Progresses - this is a tough question! Finally, consider a 20.00 mL aqueous solution of 0.20 M H2A, where "H2A" is some arbitrary diprotic acid (Ka1 = 4.35 x 10-7, Kaz = 4.85 x 10-11 Estimate the pH values of the solution after the addition of 0.00, 10.00, 20.00, 30.00, 40.00, and 60.00 mL of 0.20 M NaOH. d) Calculation M4 - 30.00 ml NaOH Added: Here we realize that 20 ml...
Question 28 3 pts What is the pH of an aqueous solution after 10.0 mL of 0.20 M NaOH is added to a 35.0 mL of 0.30 MHCIO? 05.12 O 2.77 O 3.48 6.89 lonization Constants for Acids at 25°C Name Formula Kai К2 Kaz Acetic Arsenic 1.0 x 107 3.0 x 10-12 Arsenous Ascorbic 1.6 x 10-12 Benzoic Boric HC2H302 H₂A504 НАО H2C8H08 HG,HgO2 H803 HC H102 H.CO, HC H20201 HCIOZ HyCH07 HCNO Butanol Carbonic 5.6 x 10-11 Chloroacetic...
these were provided with the test Question 32 3 pts What is the molar solubility.s, of a saturated solution of cadmium sulfide, CdS*? O 9.3 x 10-10 O 2.2 x 10-9 O2.7 x 10-18 O 7.9 x 10-8 O 8.4 x 10-13 lonization Constants for Acids at 25°C Name Formula Kai К2 Kaz Acetic Arsenic 1.0 x 107 3.0 x 10-12 Arsenous Ascorbic 1.6 x 10-12 Benzoic Boric HC2H302 H₂A504 НАО H2C8H08 HG,HgO2 H803 HC H102 H.CO, HC H20201 HCIOZ...
17.6 Based on the information in Appendix D, calculate the pH and trimethylammonium ion concentration of a solution of trimethylamine, (CH3) 3N, 0.075 M, and trimethylammonium chloride, (CH3) 3NHCl, 0.10 M. CONSTANTS OF AQUEOUS BALANCE Кок LO X 107 3.0 X 10-12 X L6 X 10 12 Kat 18 X 105 5.6 X 10- 5.1 X 10-10 3 X 10 6.3 X 105 5.8 X 10 10 15 X Ls 43 X 10 14 X 1st 1 x 102 74...
QUESTION 7 The data set Beer Large, which can be found in StatCrunch Shared Data Sets, gives the Alcohol, Carbohydrates and Calories for different brands of beer. The explanatory variable is x + Carbohydrates and the response variable is Y - Calories. Use this information to answer: Calculate the correlation between carbohydrates and calories. (4 decimal places) Row vars varo var var 8 var9 var 10 2 الميا ABV 4.1 5.4 4.43 4.13 5.9 4.9 Carbs 2.6 13.7 5.8 5...