Homework Answers
![-5 xxx 4, 68X10 (0.102-1) : 0.102-1 n 0.102 = 4.68x105 0.102 - x² = 4.788106 x = 2.194103 x = [H3 04] = 2.19 x1ő % M pH = -lo](http://img.homeworklib.com/questions/98f2e8e0-6e6a-11ea-925c-bf26508d1c69.png?x-oss-process=image/resize,w_560)
5. Exactly 100 mL of 0.15 M nitrous acid (HNO2) are titrated with a 0.15 M NaOH solution. Calculate the pH for [10 pts] the point at which 100 mL of the base has been added. 5. Exactly 100 mL...
5. Exactly 100 mL of 0.15 M nitrous acid (HNO2) are titrated with a 0.15 M NaOH solution. Calculate the pH for [10 pts] the point at which 100 mL of the base has been added.
5. Exactly 100 mL of 0.15 M nitrous acid (HNO2) are titrated with a 0.15 M NaOH solution. Calculate the pH for [10 pts] the point at which 100 mL of the base has been added.
A 27.2 mL sample of 0.270 M diethylamine, (C,Hz),NH, is titrated with 0.217 M hydroiodic acid....
A 27.2 mL sample of 0.270 M diethylamine, (C,Hz),NH, is titrated with 0.217 M hydroiodic acid. At the titration midpoint, the pH is A 22.6 mL sample of 0.215 M diethylamine, (C2H3)2NH, is titrated with 0.377 M hydroiodic acid. The pH before the addition of any hydroiodic acid is
40.0 ml of an acetic acid of unknown concentration is titrated with 0.100 M NaOH. After...
40.0 ml of an acetic acid of unknown concentration is titrated with 0.100 M NaOH. After 20.0 mL of the base solution has been added, the pH in the titration flask is 5.10. What was the concentration of the original acetic acid solution? [Ka(CH3COOH) = 1.8 × 10–5]
24A) 40mL of 0.2 M formic acid is titrated with a strong base (NaOH= 0.5 M). Determine the pH before any base has been...
24A) 40mL of 0.2 M formic acid is titrated with a strong base
(NaOH= 0.5 M). Determine the pH before any base has been added.
Please show steps and please explain why the answer is what it
is.
24B) The 40mL 0.2 M formic acid is titrated with a 6.0mL of
strong base. Here NaOH can be treated as a conjugate base and
formic acid is the acid.
please show steps and explain!
Us (24-25, Acid/base, aqueous equilibrium) 24A) (4...
Question 2 15 P Weak Acid Titration Calculations. A 25.0 mL aliquot of 0.50 M propanoic...
Question 2 15 P Weak Acid Titration Calculations. A 25.0 mL aliquot of 0.50 M propanoic acid (CH3CH2O2H) is placed in a 250 mL Erlenmeyer flask and titrated with a standardized solution of 0.25 M NaOH. The pKof propanoic acid is 4.88. Calculate the pH of the solution after the addition of the following volumes of acid. Neglect activity. (15 points) a) 0.00 mL of NaOH added: 2.59 b) 50.00 mL of NaOH added: 8.49 c) 75.00 mL of NaOH...
IV. Acid-Base Titration (15 points). A 50 mL of 0.200 M HNO2, (Ka= 4.0 x 10)...
IV. Acid-Base Titration (15 points). A 50 mL of 0.200 M HNO2, (Ka= 4.0 x 10) solution is titrated with 0.200 M NaOH. Find the pH before titration and after 25 mL, 50 mL, and 60 mL of NaOH has been added.
pH after titration question A 30.1 mL sample of a 0.540 M aqueous nitrous acid solution...
pH after titration question A 30.1 mL sample of a 0.540 M aqueous nitrous acid solution is titrated with a 0.306 M aqueous barium hydroxide solution. What is the pH after 9.91 mL of base have been added?
(3) 30.00 mL of 0.085 M Hydrofluoric acid (HF) is titrated with 0.10 M NaOH. What...
(3) 30.00 mL of 0.085 M Hydrofluoric acid (HF) is titrated with 0.10 M NaOH. What is the pH of the acid solution before any base is added? (Ans: pH = 2.11) What is the pH of the titration mixture at half the equivalence point? (Ans: pH = 3.35) What is the pH of the titration mixture at the equivalence point? (Ans: pH = 7.92) What is the pH of the mixture after 40.00 mL of base are added? (Ans:...
14) (20 Points: 5 pts. each) This is a 4-part Acid/Base Question regarding a 50 mil...
14) (20 Points: 5 pts. each) This is a 4-part Acid/Base Question regarding a 50 mil aliquot of O.I M HCI being treated with 0.2 M NaOH a) What is the pH before the titration starts? What is the pH of the new solution created by adding 20 ml of the NaOH solution to the 50 ml aliquot of the HCI solution? b) c) What is the pH at the equivalence point? d) What is the pH of the resulting...
A) A 21.5 mL sample of a 0.452 M aqueous nitrous acid solution is titrated with...
A) A 21.5 mL sample of a 0.452 M aqueous nitrous acid solution is titrated with a 0.356 M aqueous sodium hydroxide solution. What is the pH at the start of the titration, before any sodium hydroxide has been added? pH = B) A 42.1 mL sample of a 0.399 M aqueous acetic acid solution is titrated with a 0.219 M aqueous sodium hydroxide solution. What is the pH after 51.8 mL of base have been added? pH = C)...
5. Exactly 100 mL of 0.15 M nitrous acid (HNO2) are titrated with a 0.15 M NaOH solution. Calculate the pH for [10 pts] the point at which 100 mL of the base has been added.
5. Exactly 100 mL of 0.15 M nitrous acid (HNO2) are titrated with a 0.15 M NaOH solution. Calculate the pH for [10 pts] the point at which 100 mL of the base has been added.
A 27.2 mL sample of 0.270 M diethylamine, (C,Hz),NH, is titrated with 0.217 M hydroiodic acid. At the titration midpoint, the pH is A 22.6 mL sample of 0.215 M diethylamine, (C2H3)2NH, is titrated with 0.377 M hydroiodic acid. The pH before the addition of any hydroiodic acid is
24A) 40mL of 0.2 M formic acid is titrated with a strong base
(NaOH= 0.5 M). Determine the pH before any base has been added.
Please show steps and please explain why the answer is what it
is.
24B) The 40mL 0.2 M formic acid is titrated with a 6.0mL of
strong base. Here NaOH can be treated as a conjugate base and
formic acid is the acid.
please show steps and explain!
Us (24-25, Acid/base, aqueous equilibrium) 24A) (4...
Question 2 15 P Weak Acid Titration Calculations. A 25.0 mL aliquot of 0.50 M propanoic acid (CH3CH2O2H) is placed in a 250 mL Erlenmeyer flask and titrated with a standardized solution of 0.25 M NaOH. The pKof propanoic acid is 4.88. Calculate the pH of the solution after the addition of the following volumes of acid. Neglect activity. (15 points) a) 0.00 mL of NaOH added: 2.59 b) 50.00 mL of NaOH added: 8.49 c) 75.00 mL of NaOH...
IV. Acid-Base Titration (15 points). A 50 mL of 0.200 M HNO2, (Ka= 4.0 x 10) solution is titrated with 0.200 M NaOH. Find the pH before titration and after 25 mL, 50 mL, and 60 mL of NaOH has been added.
14) (20 Points: 5 pts. each) This is a 4-part Acid/Base Question regarding a 50 mil aliquot of O.I M HCI being treated with 0.2 M NaOH a) What is the pH before the titration starts? What is the pH of the new solution created by adding 20 ml of the NaOH solution to the 50 ml aliquot of the HCI solution? b) c) What is the pH at the equivalence point? d) What is the pH of the resulting...
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