kindly post different questions separately. please rate
9. What is the pH of a 0.05M solution of diethylamine? (ICH,CH), NH)? ilgnore activities) 10....
- What is the pH of a 0.05M solution of diethylamine? ((CH3CH2)2NH)? (Ignore activities) 10. What is the pH of a solution which contains 0.05 moles benzoic acid and 0.075 moles sodium benzoate dissolved to make 0.5000 L of solution? (Ignore Activities)
10. What is the pH of a solution which contains 0.05 moles benzoic acid and 0.075 moles sodium benzoate dissolved to make 0.5000 L of solution? (Ignore Activities)
10. What is the pH of a solution which contains 0.05 moles benzoic acid and 0.075 moles sodium benzoate dissolved to make 0.5000 L of solution? (Ignore Activities)
10. What is the pH of a solution which contains 0.05 moles benzoic acid and 0.075 moles sodium benzoate dissolved to make 0.5000 L of solution? (Ignore Activities)
9. What is the pH of a 0.05M solution of diethylamine? -? (CH,CH2)2NH)? (Ignore activities)
A chemistry graduate student is given 250. mL of a 0.90 M diethylamine NH) solution. Diethylamine is a weak base with K= 1.3 x 10 . What mass of (C2H5) NH2Cl should the student dissolve in the (C2H5) NH solution to turn it into a buffer with pH = 10.59? You may assume that the volume of the solution doesn't change when the (C, NH,Cl is dissolved in it. Be sure your answer has a unit symbol, and round it...
a) What is the pH of a solution that consist of 0.20 M ammonia, NH3, and 0.20 M ammonium choride, NH4Cl? (Kb for ammonia is 1.8 x 10-5) b) 1.25 g of benzoic acid (C6H5CO2H) and 1.25 g of sodium benzoate (NaC6H5CO2) are dissolved in enough water to make 250 mL solution. Calculate the pH of the solution using the Handerson-Hasselbach equation (Ka for benzoic acid is 6.3 x 10-5). c) What is the pH after adding 82 mg of...
5. What is the pH of a 0.05M solution of koha 6. A bottle is labeled 0.0450M but the label can not be read. The pH of the solution is 2.78. Determine the pka of this substance. Ignore Activities
5. What is the pH of a 0.05M solution of KOH? 6. A bottle is labeled 0.0450M but the label can not be read. The pH of the solution is 2.78. Determine the pka of this substance. Ignore Activities
If a buffer solution is 0.300 M in a weak base (K5 = 2.7 x 10 ) and 0.400 M in its conjugate acid, what is the pH? pH = You need to prepare 100.0 mL of a pH 4.00 buffer solution using 0.100 M benzoic acid (pK-4.20) and 0.200 M sodium benzoate How many milliliters of each solution should be mixed to prepare this buffer? benzoic acid: Amt ml. sodium benzoate: 1 ml