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.
Homework Answers
Answer-
Q 1) protonated, positively charged
Q 2) protonated, neutral
Q 3) deprotonated, neutral
Q 4) deprotonated, negatively charged.
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Can you please check my work? I am having difficulty in
differentiating my answers from pH>pKa...
My answers are: Question 1: False Question 4: proton transfer with a pK close to 4...
My answers are:
Question 1: False
Question 4: proton transfer with a pK close to 4
Question 5: the active site contains an aspartic acid and
glutamic acid, both of which must be deprotonated
Question 8: 2 histidine residues with somewhat different pKa
values act as acids and bases during catalysis
Can someone please check my answers?
Question 1 (1 point) Cellulose and glycogen are both structural polysaccharides True False Question 4 (1 point) _ in the A pH versus...
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?
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...
4. The basie differences between RNA and DNA are a. the organic bases only b. bases, ribose uaits...
4. The basie differences between RNA and DNA are a. the organic bases only b. bases, ribose uaits, and the phosphodiester linkage c. bases, ribose units, and the glycosidic bond type bases and the ribose units oaly 5. The solubility characteristics of the pyrimidine or purine bases and the corresponding nucleosides differ greatly. Which of the following statements is not true? a. purine bases are quite soluble in water b, nucleosides are much more soluble than the corresponding bases c....
Can you please explain these throughly!! I will give good rate thank you!! For the next...
Can you please explain these throughly!! I will give good rate
thank you!!
For the next problems, your explanation needs to refer to one or more of the following factors: inductive, electronegativity, resonance stability, size 3. The following compounds can all behave as acids: 0 0 OH CH3CH2OH F C HCOH HOCF3 HC 0 a. For each compound, draw its conjugate base. b. Rank the acids in order of increasing acidity. Explain your ranking, 4. The following compounds can all...
Please help with my Titration lab! I am having difficulty understanding this. Thank you! C. Analyzing...
Please help with my Titration lab! I am having difficulty
understanding this. Thank you!
C. Analyzing an unknown base - optimizing a method: In this segment you will design your own method for analyzing an unknown base. In the solutions list there are several different concentrations of HCl to choose from. You can also try different sample volumes of the unknown base. Be sure to record these for each trial. Your goal is to find two different combinations of HCI...
answer so i can check my answers when i am finish 33) What accumulates in foamy...
answer so i can check my answers when i am finish
33) What accumulates in foamy cells (macrophages)? a) Cholesterol 5) Neutral fat c) Lipofuscin d) Proteins e) Bilirubin 34) Which of the following is a typical product of anaerobic cell metabolism? a) Fatty acids b) Lactic acid CY ATP d) Glycogen e) Cholesterol 35) Choose all the correct answers: Which of the following changes are common to both reversible and irreversible cell injuries? a) Plasma membrane rupture b) Cell...
Titration: Acids and Bases 2. How can you determine which acid is diprotic? 3. using the...
Titration: Acids and Bases
2. How can you determine which acid is diprotic?
3. using the answers to questions one and two, which acid is
diprotic?
4. Which base has more hydroxide ions per molecule?
Acid Volume Base Base Initial Volume (mL) Base Final Volume (mL) Volume of Base Used (mL) Acid: Base Ratio Acid 1 20 mL Base 1 50 mL 34.5 15.5 4:3 Acid 2 20 mL Base 1 Acid 1 20 mL Base 2 Acid 2 20...
Rank the acids in increasing acidity. a b c d e I do not know the answer. My guess is e &g...
Rank the acids in increasing acidity.
a b c d e
I do not know the answer.
My guess is e > c > a > d > b
reason: since this is positively charged, I thought that
stabilizing the positive charge will lead to a stronger acid. I did
not think about the conjugate bases. So, since lower
electronegativity atom will stabilize the positive charge more, c
and e would be the most acidic since N is less...
Hey guys, I am having a lot of trouble with my homework. Could you please help?...
Hey guys, I am having a lot of trouble with my homework. Could
you please help? I thumbs up anyone who gives a thorough
explanation and shows the work! I really need to understand these
concepts!
Thank you guys!
1) The Ka for HCN is 4.9 ~ 10-10. What is the value of Kb for CN-? 2) Using the data in the table for 0.10 M aqueous species at 25 °C, which conjugate base below is the weakest base? Explain...
Hey guys, I am having a lot of trouble with my homework. Could you please help?...
Hey guys, I am having a lot of trouble with my homework. Could
you please help? I thumbs up anyone who gives a thorough
explanation and shows the work! I really need to understand these
concepts!
Thanks in advance!
1) The Ka for HCN is 4.9 ~ 10-10. What is the value of Kb for CN-? 2) Using the data in the table for 0.10 M aqueous species at 25 °C, which conjugate base below is the weakest base? Explain...
My answers are:
Question 1: False
Question 4: proton transfer with a pK close to 4
Question 5: the active site contains an aspartic acid and
glutamic acid, both of which must be deprotonated
Question 8: 2 histidine residues with somewhat different pKa
values act as acids and bases during catalysis
Can someone please check my answers?
Question 1 (1 point) Cellulose and glycogen are both structural polysaccharides True False Question 4 (1 point) _ in the A pH versus...
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...
4. The basie differences between RNA and DNA are a. the organic bases only b. bases, ribose uaits, and the phosphodiester linkage c. bases, ribose units, and the glycosidic bond type bases and the ribose units oaly 5. The solubility characteristics of the pyrimidine or purine bases and the corresponding nucleosides differ greatly. Which of the following statements is not true? a. purine bases are quite soluble in water b, nucleosides are much more soluble than the corresponding bases c....
Can you please explain these throughly!! I will give good rate
thank you!!
For the next problems, your explanation needs to refer to one or more of the following factors: inductive, electronegativity, resonance stability, size 3. The following compounds can all behave as acids: 0 0 OH CH3CH2OH F C HCOH HOCF3 HC 0 a. For each compound, draw its conjugate base. b. Rank the acids in order of increasing acidity. Explain your ranking, 4. The following compounds can all...
Please help with my Titration lab! I am having difficulty
understanding this. Thank you!
C. Analyzing an unknown base - optimizing a method: In this segment you will design your own method for analyzing an unknown base. In the solutions list there are several different concentrations of HCl to choose from. You can also try different sample volumes of the unknown base. Be sure to record these for each trial. Your goal is to find two different combinations of HCI...
answer so i can check my answers when i am finish
33) What accumulates in foamy cells (macrophages)? a) Cholesterol 5) Neutral fat c) Lipofuscin d) Proteins e) Bilirubin 34) Which of the following is a typical product of anaerobic cell metabolism? a) Fatty acids b) Lactic acid CY ATP d) Glycogen e) Cholesterol 35) Choose all the correct answers: Which of the following changes are common to both reversible and irreversible cell injuries? a) Plasma membrane rupture b) Cell...
Titration: Acids and Bases
2. How can you determine which acid is diprotic?
3. using the answers to questions one and two, which acid is
diprotic?
4. Which base has more hydroxide ions per molecule?
Acid Volume Base Base Initial Volume (mL) Base Final Volume (mL) Volume of Base Used (mL) Acid: Base Ratio Acid 1 20 mL Base 1 50 mL 34.5 15.5 4:3 Acid 2 20 mL Base 1 Acid 1 20 mL Base 2 Acid 2 20...
Rank the acids in increasing acidity.
a b c d e
I do not know the answer.
My guess is e > c > a > d > b
reason: since this is positively charged, I thought that
stabilizing the positive charge will lead to a stronger acid. I did
not think about the conjugate bases. So, since lower
electronegativity atom will stabilize the positive charge more, c
and e would be the most acidic since N is less...
Hey guys, I am having a lot of trouble with my homework. Could
you please help? I thumbs up anyone who gives a thorough
explanation and shows the work! I really need to understand these
concepts!
Thank you guys!
1) The Ka for HCN is 4.9 ~ 10-10. What is the value of Kb for CN-? 2) Using the data in the table for 0.10 M aqueous species at 25 °C, which conjugate base below is the weakest base? Explain...
Hey guys, I am having a lot of trouble with my homework. Could
you please help? I thumbs up anyone who gives a thorough
explanation and shows the work! I really need to understand these
concepts!
Thanks in advance!
1) The Ka for HCN is 4.9 ~ 10-10. What is the value of Kb for CN-? 2) Using the data in the table for 0.10 M aqueous species at 25 °C, which conjugate base below is the weakest base? Explain...
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