Homework Answers
Option A. At a pH lower than pKa, you have the protonated species.
Then at pH = -4.4 there is a higher concentration of protonated species.
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X Question pH and pKa Unanswered In which solution will ethanol, with a pKa value of...
Can you please check my work? I am having difficulty in differentiating my answers from pH>pKa...
Can you please check my work? I am having difficulty in
differentiating my answers from pH>pKa to pH<pKa. I do not
understand how acids and bases would be different among each other
in relation to pH and pKa. Guidance would be greatly appreciated.
Thank you.
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What is the pH of 5x10-3M solutions of the drug shown below (Atropine,pka = 9.7:pKb =...
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1,2,and 3 please!!
Post-Lab Questions 1. The pKa value for the carboxylic structure of acetic acid at (a) pH- 1, (b) pH-7, and (c) p-13 acid group in acetic acid is 4.75. Write the predominant 2. Fill in the following table to show the theoretical results for the titration of 1.0 L of 0.20 M acetic acid by adding the designated amount of solid (no volume change) potassium hydroxide, KOH. Show a sample calculation of your work below. pH IH'T...
The conjugate acid of ethanol amine (HOCH2CH2NH3+) has pKa = 9.50. What can you conclude about...
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What is the resulting pH of a solution made by mixing 10.0 mL of an HCl(aq) solution having a pH of 2.00 with 10.0 mL of an HCl(aq) solution having a pH of 6.00? Numeric Answer: Unanswered • 2 attempts left Submit Calculate the pOH of a 7.0E0 M NACH3CO2 (aq) solution. The Ke of acetic acid is 1.8x10-5. 0 Respond with the correct number of significant figures in scientific notation (Use Enotation and only 1 digit before decimal e.g....
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what are the correct answers? Question 4 (1 point) Saved How many equivalents of NaOH base would you expect to add to phosphoric acid when adjusting the pH to 6.82 ? Hint: pKa values are in the...
what are the correct answers?
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Can you please check my work? I am having difficulty in
differentiating my answers from pH>pKa to pH<pKa. I do not
understand how acids and bases would be different among each other
in relation to pH and pKa. Guidance would be greatly appreciated.
Thank you.
D Question 5 8 pts pKa and pH pKa pH when the concentration of the protonated and deprotonated forms are the same. At a pH below the pKa, which form of a base will be...
1. Calculate pl value of His. COO H-C-CH NH3 Histidine (His, H) 2. The R group of lysine has an amino group that can be positively charged or lose a proton to become neutral. The pKa of the amino group is 10.8. Determine the fraction of amino group that is protonated at pH 9.8 and at pH 11.8.
1. Calculate pl value of His. COO H-C-CH NH3 Histidine (His, H) 2. The R group of lysine has an amino group...
What is the pH of 5x10-3M solutions of the drug shown below (Atropine,pka = 9.7:pKb = 4.3) used to treat fever? OH o A 3.3 O B 10.7 OC 6.0 OD 8.0 Unanswered 2 attempts left Submit
1,2,and 3 please!!
Post-Lab Questions 1. The pKa value for the carboxylic structure of acetic acid at (a) pH- 1, (b) pH-7, and (c) p-13 acid group in acetic acid is 4.75. Write the predominant 2. Fill in the following table to show the theoretical results for the titration of 1.0 L of 0.20 M acetic acid by adding the designated amount of solid (no volume change) potassium hydroxide, KOH. Show a sample calculation of your work below. pH IH'T...
What is the resulting pH of a solution made by mixing 10.0 mL of an HCl(aq) solution having a pH of 2.00 with 10.0 mL of an HCl(aq) solution having a pH of 6.00? Numeric Answer: Unanswered • 2 attempts left Submit Calculate the pOH of a 7.0E0 M NACH3CO2 (aq) solution. The Ke of acetic acid is 1.8x10-5. 0 Respond with the correct number of significant figures in scientific notation (Use Enotation and only 1 digit before decimal e.g....
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what are the correct answers?
Question 4 (1 point) Saved How many equivalents of NaOH base would you expect to add to phosphoric acid when adjusting the pH to 6.82 ? Hint: pKa values are in the notes 0.5 1.5 2.5 o 1.0 2.0 Question 6 (1 point) Citric acid is a triprotic acid with three carboxylic acid groups having pK,values of 3.1,4.8, and 64. If a solution of citric acid has a predominantly means greater then 50% pH of...
5 Unanswered A project requires $600,000 in equipment which is expected to have a salvage value of $40,000 when the project ends in 8 years. If the equipment can be depreciated straight-line to its salvage value, what is the annual depreciation expense? Type your response 2 attempts left. Submit
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