1
answer
0
watching
355
views
17 Nov 2019
Calculate the pH of a buffer solution prepared by mixing 15.0 mL of 0 20 M acetic acid and 15 0 mL of 0 20 M sodium acetate. Assume the volumes are additive K_a for acetic acid is 1.8 times 10Y^-5 Give a recipe to prepare an acetate acetic acid buffer having a pH of 4 90 K_a for acetic acid is 1.8 times 10^-5 Give a recipe to prepare a ammonia ammonium chloride buffer having a pH of 8 50 k_b for ammonia is 1.8 times 10^-5 Sketch the following titration curves, clearly mark the end points then tell what information can be obtained from each: a strong strong base a weak monoprotic acid strong base a weak diprotic acid strong base A 25 00 mL of an oxalic acid (H_2C_2O_4) solution required 40 00 mL of a 0 09S A รยข 0 M solution of NaOH for complete neutralization to the phenolphthalein end point. What is the molarity of the acid what was the pH of the oxalic acid solution after the addition of 10.00 mL and 30.00 mL of the base For H_2C_2O_4, K_al = 4.2 times 10^-2 and K_a2 = 6.1 times 10^-5
Calculate the pH of a buffer solution prepared by mixing 15.0 mL of 0 20 M acetic acid and 15 0 mL of 0 20 M sodium acetate. Assume the volumes are additive K_a for acetic acid is 1.8 times 10Y^-5 Give a recipe to prepare an acetate acetic acid buffer having a pH of 4 90 K_a for acetic acid is 1.8 times 10^-5 Give a recipe to prepare a ammonia ammonium chloride buffer having a pH of 8 50 k_b for ammonia is 1.8 times 10^-5 Sketch the following titration curves, clearly mark the end points then tell what information can be obtained from each: a strong strong base a weak monoprotic acid strong base a weak diprotic acid strong base A 25 00 mL of an oxalic acid (H_2C_2O_4) solution required 40 00 mL of a 0 09S A รยข 0 M solution of NaOH for complete neutralization to the phenolphthalein end point. What is the molarity of the acid what was the pH of the oxalic acid solution after the addition of 10.00 mL and 30.00 mL of the base For H_2C_2O_4, K_al = 4.2 times 10^-2 and K_a2 = 6.1 times 10^-5
Casey DurganLv2
18 Sep 2019