1. Which one of the following salts forms aqueous solutions with pH = 7? (Circle the...
Fall 2019 Section: Mon Tues weu s 1. Which one of the following salts forms aqueous solutions with pH=7? (Circle the correct answer) a) Feci b ) KBr c) LICIO; d) NH.NO, e) Na2CO3 2. Calculate the pH of a 0.150M solution of sodium acetate (NaC,H,O,) at 25°C. (K, for acetic acid cu 1010-51
Question 2 7 poin Calculate the pH of the solution that results from a mixture of 0.50 M acetic acid (HC2H302) and 0.25 M sodium acetate (NaC2H302). K, for HC2H302 - 1.78x10-5
QUESTION 14 What is the pH of a solution that is 0.1 Min acetic acid, HC2H302, and 0.3 Min sodium acetate, NaC2H302, at 25°C? Ko of acetic acid is 1.8 x 10-5 25.23 1.53 Oc 4.74 d. 2.29 6.08
Which of the following salts forms an aqueous solution with pH < 7? Please list each reaction and why it's wrong or correct. Also please write neatly, I've had a difficult time understanding the writing in some of the written solutions. I would prefer if this is typed up. 1. Na2S 2. NaCl 3. NaOH 4. NH4Cl 5. NH4OH
Important Info: Ka reaction: HC2H3O2(aq) + H2O(l) <-->C2H3O2 (aq) +H3O+(aq) HC2H3O(aq) +OH-(aq) -> C2H3O2-(aq) + H2O (l) A 1.0 L buffer solution is 0.280 M in HC2H302 (acetic acid) and 0.320 M in NaC2H302 (sodium acetate). Calculate the pH of the budder and he Ka for HC2H3O2 IS 1.8 X 10-5 Calculate the pH of te solution above after the addition of 0.0400 moles of solid NaOH. Assume no volume change upon the addition of base.
Calculate the pH of the following solutions 1. A solution that is 6.0×10−2 M in potassium propionate (C2H5COOK or KC3H5O2 ) and 8.5×10−2 M in propionic acid (C2H5COOH or HC3H5O2 ). The Ka of propionic acid is 1.3×10-5. 2. A solution that is 8.0×10−2 M in trimethylamine, (CH3)3N, and 0.12 M in trimethylammonium chloride, (CH3)3NHCl. The Kb of trimethylamine is 6.4×10-5. 3. A solution that is made by mixing 50.0 mL of 0.16 M acetic acid and 50.0 mL of...
hi there! please solve and show all work :) A buffered solution contains 0.50 M acetic acid (HC2H302, K = 1.8 x10-5) and 0.50 M sodium acetate (NaC2H302)- "15pts) Calculate the pH of the solution: Calculate the pH after adding 0.020 mol NaOH into 1.00L of the buffer solution: m (base )
e Search this course Acid-Base Properties of Salts, and Buffers What is the pH of a 0.22M solution of sodium benzoate? K = 6.3 x 10" for benzoic acid, C,HCOOH. Would this solution be more or less acidic than a 0.22M solution of sodium acetate? K, = 1.8 x 10 for acetic acid, CH3 COOH. pH- This solution would be - acidic than a 0.22M solution of sodium acetate, Submit Answer 1 question attempt remaining
Calculate the pH of each of the following buffered solutions. K. (HC2H2O2) = 1.8 x 10-5 1.0.19 M acetic acid/0.23 M sodium acetate pH 2.0.23 M acetic acid/0.19 M sodium acetate PH 3. 0.070 M acetic acid/0.18 M sodium acetate PH 4.0.18 M acetic acid/0.070 M sodium acetate PH
e) 8.67 1. IM in What is 0.3 M in 25°c ? acetic acid, HC2H302 3 the pH of a solution that sodium acetate.. Na C 2 H 3 Oz at Ka of acetic acid is 1.8 x 10-5 a) 5.23 b) 1.53 c) 4.74 d) 2.29 e) 6.08