Homework Answers
Acetic acid in water can dissociates partially and can loose H+
ion. Where as ethanol doesn't dissociates like acetic acid since
the anion formed by ethanol deactivated by alkyl group. Where as
the anion formed by acetic acid stabilized by carbonyl group
present in it. 
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tivity Explain why the pH of o.1 M ethanol is higher than the pH of 0.1...
QUESTION 1 [Carboxylic Acids: Structure, Physical Properties and Reactivity] 1.1. Draw the structures of ethanol and...
QUESTION 1 [Carboxylic Acids: Structure, Physical Properties and Reactivity] 1.1. Draw the structures of ethanol and acetic (ethanoic) acid in the ground and conjugate acid states and then account why acetic acid is a stronger acid than ethanol. (6) 1.2. Explain with the aid of structures why 4-hydroxybenzoic acid would boil or melt at higher temperature than the isomeric 2-hydroxybenzoic acid. (6)
Please Help a) Calculate the pH of a solution initially 0.1 M in acetic acid and...
Please Help a) Calculate the pH of a solution initially 0.1 M in acetic acid and 0.02 M in sodium acetate. The pKa for acetic acid is 4.76. B) calculate the pH of the buffer if you add 10 ml of 0.1 M HCL to 100ml of the buffer in part a.
Explain why a weak acid solution has a higher pH than a strong acid solution concentration....
Explain why a weak acid solution has a higher pH than a strong acid solution concentration. of the same Explain why the equivalence point of a weak acid titrated with a strong base occurs at a basic pH.
Estimate to ±0.1 the pH value of the following solutions: 1. 0.043 M sodium hydrogen carbonate...
Estimate to ±0.1 the pH value of the following solutions: 1. 0.043 M sodium hydrogen carbonate 2. 0.017 M sodium hydrogen tartrate Blood pH is regulated to stay within the narrow range of 7.35 to 7.45, making it slightly basic. Which form of the following molecules is predominant at pH 7.4 (draw formula in ChemDraw or ChemSketch with appropriate protons shown): 1. Pyridine 2. Ethylamine 3. Acetic acid 4. Citric acid 5. Ibuprofen (pKa =4.91) 6. Glycine 7. Amphetamine (pKa...
Explain why acetic acid has a higher boiling point than ethyl alcohol ?
Explain why acetic acid has a higher boiling point than ethyl alcohol ?
calculate the pH for a buffer solution made from a 3:1 ratio of 0.1 M acetic...
calculate the pH for a buffer solution made from a 3:1 ratio of 0.1 M acetic acid and 0.1 M sodium acetate. (pKa of acetic acid is 4.76)
1) How would you make 300 ml of a 0.1 M sodium phosphate buffer, pH 7.0...
1) How would you make 300 ml of a 0.1 M sodium phosphate buffer, pH 7.0 (pKa = 7.2) phosphate dibasic (the conjugate base). 2) What are the concentrations of acetate and acetic acid in a 0.2 M acetate buffer pH 5.3? The pKa for acetic acid is 4.76. 3)You have 100 ml of 0.1 M acetate buffer pH 5.2 (pKa 4.76). You add 10 ml of 0.1 M NaOH. Calculate the resulting change in pH and the buffering capacity...
1. A solution has [HC7H5O2] = 0.100 M and [Ca(C7H5O2)2] = 0.200 M. Ka = 6.3...
1. A solution has [HC7H5O2] = 0.100 M and [Ca(C7H5O2)2] = 0.200 M. Ka = 6.3 × 10-5 for HC7H5O2. The solution volume is 5.00 L. What is the pH of this solution after 5.00 mL 10.0 M HCl is added? 2. Which of the following solution(s) is a buffer? 100 mL of 0.1 M acetic acid mixed with 25 mL of 0.5 M NaOH 50 mL of 0.1 M acetic acid mixed with 25 mL of 0.05 M sodium...
(2 Put a (True) or an E take in the box. Spaints Ethanol boils higher than...
(2 Put a (True) or an E take in the box. Spaints Ethanol boils higher than water Chigher b.p.) ybo Hag C-C=C C-c-c Pd/c 10: C-c-c kmnos heat c-&-c i kmnog c-c-c-H c-c18 heat PH c-c-c-c-c is more soluble in H₂O Than C-C-C : 0-1 it is rë: is the R isomer (47#'s I 7 Br7678) H 0 --CH Ennoy c-c-co-H 29 os False I continued (sets eech) (2-3) Hz 10: E-c-c OCH C-ic Pd/c is a cyclic ester Peptide...
8. a. Explain why the melting point of pure phthalic acid is higher than that of...
8. a. Explain why the melting point of pure phthalic acid is higher than that of pure napthalene, when the two compounds have nearly the same molecular weight. b. Explain why the melting point of pure hexane is hgiher than that of pure cyclo-hexane, when the two compounds have nearly the same molecular weight. (Hint: reffer to structures)
QUESTION 1 [Carboxylic Acids: Structure, Physical Properties and Reactivity] 1.1. Draw the structures of ethanol and acetic (ethanoic) acid in the ground and conjugate acid states and then account why acetic acid is a stronger acid than ethanol. (6) 1.2. Explain with the aid of structures why 4-hydroxybenzoic acid would boil or melt at higher temperature than the isomeric 2-hydroxybenzoic acid. (6)
Explain why a weak acid solution has a higher pH than a strong acid solution concentration. of the same Explain why the equivalence point of a weak acid titrated with a strong base occurs at a basic pH.
(2 Put a (True) or an E take in the box. Spaints Ethanol boils higher than water Chigher b.p.) ybo Hag C-C=C C-c-c Pd/c 10: C-c-c kmnos heat c-&-c i kmnog c-c-c-H c-c18 heat PH c-c-c-c-c is more soluble in H₂O Than C-C-C : 0-1 it is rë: is the R isomer (47#'s I 7 Br7678) H 0 --CH Ennoy c-c-co-H 29 os False I continued (sets eech) (2-3) Hz 10: E-c-c OCH C-ic Pd/c is a cyclic ester Peptide...
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