Ester lab calculations
When you set up the reaction, you placed 7.50 milliliters of isopentyl alcohol into the reaction flask and then added excess acetic acid. If at the end of the experiment, you isolated 6.810 grams of isopentyl acetate, what was your percent yield for the reaction?(use correct number of significant figures)
Physical Data for Isopentyl Alcohol:
Molecular Weight = 88.15 g/mol
Density = 0.8000 g/mL
Physical Data for Isopentyl Acetate:
Molecular Weight = 130.19 g/mol
Homework Answers
76.85%.
Detailed calculations are as following:
(6.81/130.19)/((7.5*0.8)/88.15)
my actual yield of banana pil is 0.297 need theorticla tield and percnet yield use isopentyl...
my
actual yield of banana pil is 0.297 need theorticla tield and
percnet yield use isopentyl alcohol
150 ml of alcohol 17 ml acetic acid Iml concentrated sulfuric acid 2 or 3 boiling base in a fiat bottom flask 17.64 gr banana oil need percent yield and theoretical yield of banana oil You need to calculate it with isopentyl alcohol no acetic acid. Then convert mmols to moles, so you just need divide the mmmols by 1000, after that since...
If the yield from the reaction of acetic acid with isopentyl alcohol is 45%, how many...
If the yield from the reaction of acetic acid with isopentyl alcohol is 45%, how many grams of isopentyl acetate are formed from 3.58 g of acetic acid and 4.70 g of isopentyl alcohol? The reaction is: CH3CO2H+C5H12O→C7H14O2+H2O Express your answer using two significant figures.
answer it all please BS132 Experiment 3 2018-2019 The limiting reagent is the reagent which will...
answer it all please
BS132 Experiment 3 2018-2019 The limiting reagent is the reagent which will completely react and so iIs excess. It will therefore be the reagent for which a lower number o present. Compare the respective molar proportions of the reagents used A and B above] and deduce which is the limiting reagent not in f moles are Igiven by Limiting reagent = 1 mark Scale of reaction (i.e. number of moles of limiting reagent used) - mol...
weight of cylinder 10.48g weight of cylinder with of isopentyl alcohol 14.55g weight of collecting flask...
weight of cylinder 10.48g
weight of cylinder with of isopentyl alcohol 14.55g
weight of collecting flask 56.77 g
weight of collecting flask with product 60.42g
I need help getting theoretical yield and % yield.
Experiment 12 Isopentyl Acetate (Banana Oil) 93 Rasmussen, P. W. Qualitative Analysis by Gas Chromatography-G.C. versus the Nose in Formu- lation of Artificial Fruit Flavors." Journal of Chemical Education, 61 (January 1984): 62. Shreve, R. N., and Brink, J. Chemical Process Industries, 4th ed. New York:...
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...
cant figure out number FOUR please thanks for your help Experiment 5 Preparation of Synthetic Banana...
cant figure out number FOUR please thanks for your help
Experiment 5 Preparation of Synthetic Banana Oil Compare the sum of these estimated losses with your actual product loss and try to account for any significant differences. 2/ What gas escaped during the sodium bicarbonate washing? Write bal- anced equations for two reactions that took place during this operation. 3. (a) Calculate the atom economy and reaction efficiency of your synthe- sis of isopentyl acetate. (b) Tell how the procedure...
This assignment is due at the beginning of your lab period in the next week Name:...
This assignment is due at the beginning of your lab period in the next week Name: pts: 115 pts Consider the following reaction between cyclohexene and diatomic bromine. .. oke 40 ml 35 ml Cyclohexene (C6H12): molecular weight = 82.14 g/mol; density = 0.811 g/ml Bromine (Bra): molecular weight = 159.81 g/mol; density = 3.12 g/mL (1 point each) 1. How many grams of cyclohexene are involved in this reaction? 2. How many grams of bromine are involved in this...
Give a detailed mechanism for this reaction and give a separation scheme NUCLEOPHILIC ACYL SUBSTITUTION: Synthesis...
Give a detailed mechanism for this reaction and give a separation
scheme
NUCLEOPHILIC ACYL SUBSTITUTION: Synthesis of an Ester Isoamyl acetate (Banana Oil) Purpose This experiment demonstrat and alcohol. The technique of refluxing the reaction mixture is introduced. es the procedure for the synthesis of an ester from a carboxylic acid Esters are an important functional group in organic chemistry, and esters are found widely distributed in nature. Many lower molecular weight esters are associated with natural fuit flavors and...
Pre-lab Questions: Importance A one-step preparation of aspirin from its precursor, salicylic acid, via an ester...
Pre-lab Questions:
Importance A one-step preparation of aspirin from its precursor, salicylic acid, via an ester formation illustrates one of synthetic organic chemistry's most important uses, making the drugs that treat all types of illnesses. OH HOOH Background Aspirin is a prodrug of salicylic acid, the actual active drug. A compound related to salicylic acid, salicin, was first isolated from willow bark in the mid 1700's, but willow-bark extract was used by the ancient Greeks as a treatment for pain...
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...
my
actual yield of banana pil is 0.297 need theorticla tield and
percnet yield use isopentyl alcohol
150 ml of alcohol 17 ml acetic acid Iml concentrated sulfuric acid 2 or 3 boiling base in a fiat bottom flask 17.64 gr banana oil need percent yield and theoretical yield of banana oil You need to calculate it with isopentyl alcohol no acetic acid. Then convert mmols to moles, so you just need divide the mmmols by 1000, after that since...
answer it all please
BS132 Experiment 3 2018-2019 The limiting reagent is the reagent which will completely react and so iIs excess. It will therefore be the reagent for which a lower number o present. Compare the respective molar proportions of the reagents used A and B above] and deduce which is the limiting reagent not in f moles are Igiven by Limiting reagent = 1 mark Scale of reaction (i.e. number of moles of limiting reagent used) - mol...
weight of cylinder 10.48g
weight of cylinder with of isopentyl alcohol 14.55g
weight of collecting flask 56.77 g
weight of collecting flask with product 60.42g
I need help getting theoretical yield and % yield.
Experiment 12 Isopentyl Acetate (Banana Oil) 93 Rasmussen, P. W. Qualitative Analysis by Gas Chromatography-G.C. versus the Nose in Formu- lation of Artificial Fruit Flavors." Journal of Chemical Education, 61 (January 1984): 62. Shreve, R. N., and Brink, J. Chemical Process Industries, 4th ed. New York:...
cant figure out number FOUR please thanks for your help
Experiment 5 Preparation of Synthetic Banana Oil Compare the sum of these estimated losses with your actual product loss and try to account for any significant differences. 2/ What gas escaped during the sodium bicarbonate washing? Write bal- anced equations for two reactions that took place during this operation. 3. (a) Calculate the atom economy and reaction efficiency of your synthe- sis of isopentyl acetate. (b) Tell how the procedure...
This assignment is due at the beginning of your lab period in the next week Name: pts: 115 pts Consider the following reaction between cyclohexene and diatomic bromine. .. oke 40 ml 35 ml Cyclohexene (C6H12): molecular weight = 82.14 g/mol; density = 0.811 g/ml Bromine (Bra): molecular weight = 159.81 g/mol; density = 3.12 g/mL (1 point each) 1. How many grams of cyclohexene are involved in this reaction? 2. How many grams of bromine are involved in this...
Give a detailed mechanism for this reaction and give a separation
scheme
NUCLEOPHILIC ACYL SUBSTITUTION: Synthesis of an Ester Isoamyl acetate (Banana Oil) Purpose This experiment demonstrat and alcohol. The technique of refluxing the reaction mixture is introduced. es the procedure for the synthesis of an ester from a carboxylic acid Esters are an important functional group in organic chemistry, and esters are found widely distributed in nature. Many lower molecular weight esters are associated with natural fuit flavors and...
Pre-lab Questions:
Importance A one-step preparation of aspirin from its precursor, salicylic acid, via an ester formation illustrates one of synthetic organic chemistry's most important uses, making the drugs that treat all types of illnesses. OH HOOH Background Aspirin is a prodrug of salicylic acid, the actual active drug. A compound related to salicylic acid, salicin, was first isolated from willow bark in the mid 1700's, but willow-bark extract was used by the ancient Greeks as a treatment for pain...
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...
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