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4. Suppose that the initial amount of acetic acid was doubled and the concentration of n-propyl...
Initial pH before base addition was 2.78 and the calculated concentration of the diluted acetic acid...
Initial pH before base addition was 2.78 and the calculated
concentration of the diluted acetic acid solution was 0.16 M
4. Using the initial pH of the acetic acid before addition of any base and the calculated concentration of the diluted acetic acid solution, determine the K, of acetic acid.
Titration of acetic acid . Error analysis. Suppose during the titration vou added NaOH sufficient to...
Titration of acetic acid
. Error analysis. Suppose during the titration vou added NaOH sufficient to change the indicator to a much darker pink color. How would this affect your experimental result? Would this increase or decrease your experimental acetic acid content? Explain.
You add 0.58 mL of n-propanol (0.803 g/mL, 60.1 g/mol) to an excess of acetic acid...
You add 0.58 mL of n-propanol (0.803 g/mL, 60.1 g/mol) to an excess of acetic acid to create the pear ester propyl acetate (102.1 g/mol). If you obtain 0.53 grams of the product, what was your percent yield? You react acetic acid with an unknown alcohol, and obtain the following NMR of the product. What is the unknown alcohol? LLLLLLLL LES LL 20 1-butanol (CH3CH2CH2CH2OH) 2-propanol (CH3)2CHOH) 1-propanol (CH3CH2CH20H) 2-methyl-1-propanol (CH3)2CHCH2OH) 2 butanol (CH3CHOHCH2OHCH) 3 Mi Consider the below general...
Titration of acetic acid. 4. What is the advantage of doing three trials, especially since you...
Titration of acetic acid.
4. What is the advantage of doing three trials, especially since you are doing exactly time? What does your standard deviation tell you about the precision of your results'? is, especially since you are doing exactly the same thing each 5. Error analysis. Suppose during the titration you added NaOH sufficient to change the indicator to a much darker pink color. How would this affect your experimental result? Would this increase of decrease your experimental acetic...
We made esters from carboxylic acids and alcohol. (for one of them, acetic acid + isopentyl...
We made esters from carboxylic acids and alcohol. (for one of them, acetic acid + isopentyl alcohol + couple drops of sulfuric acid). Could someone please explain those. Thank you 1. Consider if we had prepared high molecular weight esters, what problems would this pose regarding our method of analysis 2. We used sulfuric acid as a catalyst, but carboxylic acids are a reagent in this reaction. Would simply using excess carboxylic acid work as efficiently as sulfuric acid to...
POST-LABORATORY QUESTIONS 1. Explain how it is possible for the concentration of acetic acid to be...
POST-LABORATORY QUESTIONS 1. Explain how it is possible for the concentration of acetic acid to be higher than that of hydrochloric acid in solutions that have the same H3O ion concentration (same pH)? Remember, both acids ionize to form only one mole of hydronium ions per mole of acid that ionizes. 2. Do you think it is accurate to consider the titration end point as the same as the "equivalence point"? Why? How do you know that an indicator's color...
4. Using your knowledge of Le Chatelier's principle and the given equation, explain why an excess of acetic a...
4. Using your knowledge of Le Chatelier's principle and the given equation, explain why an excess of acetic acid is used in this experiment. 5. If water was added as the solvent in this reaction would this shift the equilibrium in the desired direction to form more of the product (the ester)? Explain using the given equation and LaChatelier's principle. Alcoho 6. In the two chemical structures below, identify each of the following functional groups as either carboxylic ester, carboxylic...
4. 20 points Acetic acid (CH,CO,H) reacts with isobutyl alcohol (C.H100) to yield isobutyl acetate (C...
4. 20 points Acetic acid (CH,CO,H) reacts with isobutyl alcohol (C.H100) to yield isobutyl acetate (C H202), a fragrant substance with the scent of raspberries or pears (depending on the concentration), via the balanced reaction: CH,CO,H(aq) + C,H,O(aq) -CH202 (aq) + H20() If the yield of this reaction is 51%, how many grams of isobutyl acetate are formed from 4.00 g of acetic acid and 6.00 g of isobutyl alcohol?
30 QUESTIONS FOR WEAK ACIDS & BASES EXP. 1. Examine the data for acetic acid and...
30 QUESTIONS FOR WEAK ACIDS & BASES EXP. 1. Examine the data for acetic acid and discuss the effects of dilution on the percent dissociation of this weak acid. a. What immediate effect did dilution have on Q? b. Did K change? Should it have changed? Why or why not? c. Which way did any changes cause the equilibrium to shift? Why? d. How did the shift affect the percent dissociation? Should the effects of dilution on % dissociation for...
Initial pH before base addition was 2.78 and the calculated
concentration of the diluted acetic acid solution was 0.16 M
4. Using the initial pH of the acetic acid before addition of any base and the calculated concentration of the diluted acetic acid solution, determine the K, of acetic acid.
Titration of acetic acid
. Error analysis. Suppose during the titration vou added NaOH sufficient to change the indicator to a much darker pink color. How would this affect your experimental result? Would this increase or decrease your experimental acetic acid content? Explain.
You add 0.58 mL of n-propanol (0.803 g/mL, 60.1 g/mol) to an excess of acetic acid to create the pear ester propyl acetate (102.1 g/mol). If you obtain 0.53 grams of the product, what was your percent yield? You react acetic acid with an unknown alcohol, and obtain the following NMR of the product. What is the unknown alcohol? LLLLLLLL LES LL 20 1-butanol (CH3CH2CH2CH2OH) 2-propanol (CH3)2CHOH) 1-propanol (CH3CH2CH20H) 2-methyl-1-propanol (CH3)2CHCH2OH) 2 butanol (CH3CHOHCH2OHCH) 3 Mi Consider the below general...
Titration of acetic acid.
4. What is the advantage of doing three trials, especially since you are doing exactly time? What does your standard deviation tell you about the precision of your results'? is, especially since you are doing exactly the same thing each 5. Error analysis. Suppose during the titration you added NaOH sufficient to change the indicator to a much darker pink color. How would this affect your experimental result? Would this increase of decrease your experimental acetic...
POST-LABORATORY QUESTIONS 1. Explain how it is possible for the concentration of acetic acid to be higher than that of hydrochloric acid in solutions that have the same H3O ion concentration (same pH)? Remember, both acids ionize to form only one mole of hydronium ions per mole of acid that ionizes. 2. Do you think it is accurate to consider the titration end point as the same as the "equivalence point"? Why? How do you know that an indicator's color...
4. Using your knowledge of Le Chatelier's principle and the given equation, explain why an excess of acetic acid is used in this experiment. 5. If water was added as the solvent in this reaction would this shift the equilibrium in the desired direction to form more of the product (the ester)? Explain using the given equation and LaChatelier's principle. Alcoho 6. In the two chemical structures below, identify each of the following functional groups as either carboxylic ester, carboxylic...
4. 20 points Acetic acid (CH,CO,H) reacts with isobutyl alcohol (C.H100) to yield isobutyl acetate (C H202), a fragrant substance with the scent of raspberries or pears (depending on the concentration), via the balanced reaction: CH,CO,H(aq) + C,H,O(aq) -CH202 (aq) + H20() If the yield of this reaction is 51%, how many grams of isobutyl acetate are formed from 4.00 g of acetic acid and 6.00 g of isobutyl alcohol?
30 QUESTIONS FOR WEAK ACIDS & BASES EXP. 1. Examine the data for acetic acid and discuss the effects of dilution on the percent dissociation of this weak acid. a. What immediate effect did dilution have on Q? b. Did K change? Should it have changed? Why or why not? c. Which way did any changes cause the equilibrium to shift? Why? d. How did the shift affect the percent dissociation? Should the effects of dilution on % dissociation for...
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