The solubility of acetanilide is 12.8 g in 100 mL of ethanol at 0 ∘C, and...
The solubility of acetanilide is 12.8 g in 100 mL of ethanol at 0 ∘C, and 46.4 g in 100 mL of ethanol at 60 ∘C. What is the maximum percent recovery that can be achieved for the recrystallization of acetanilide from ethanol?
A student was given a sample of crude acetanilide to recrystallize. The initial mass of the the crude acetanilide was 171 mg.The mass after recrystallization was 125 mg.
Calculate the percent recovery from recrystallization.
Homework Answers
The solubility of acetanilide in ethanol increase as temperature is increased. When the solution cools down , it becomes supersaturated and acetanilide starts to crystalize.
At 0 degree C , only 12.8 g can stay dissolved in the solution. The rest of the acetanilide precipitated out from the solution and can be separated by filtration.
Assuming there is no loss during filtration, the maximum percent recovery that can be achieved
2nd part
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The solubility of acetanilide is 12.8 g in 100 mL of ethanol at
0 ∘C, and...
What is the literature (known) melting point for acetanilide? A student performed a recrystallization to purify...
What is the literature (known) melting point for acetanilide? A student performed a recrystallization to purify a crude sample from a reaction. The amount of crude material collected from the reaction was 13.56 grams. After the purification, the student collected 8.97 grams of extremely pure material. a. What is the percent recovery of the desired material? b. Is it possible to determine how much of the desired material remained in solution after the filtration? The solubility of acetanilide in hot...
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help on question1 and part a and b 70% 9:24 AM Expert Q&A 0.502 g Mass...
help on question1 and part a and b
70% 9:24 AM Expert Q&A 0.502 g Mass of initial acetanilide (g) 0.370 g Mass of recovered acetanilide (g) Maximum % recovery 85% Your % recovery 73.7% 1.The solubility of acetanilide in your recrystallizing solvent is 5.0 mg/mL@ 10°C. (a.) Calculate the maximum % recovery in this experiment, assuming a 15.0-mL recrystallizing solution is filtered at 10°C. ignore question 1 only answer the rest b)Calculate the % recovery of the acetanilide produced...
please answer all parts I am trying to check my answers. Recrystallization of Acetanilide Recrystallization is...
please answer all parts I am trying to check my
answers.
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6.A 12.8 g sample of ethanol (C,H,OH) is burned in a calorimeter with a heat capacity...
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What is the literature (known) melting point for acetanilide? A student performed a recrystallization to purify a crude sample from a reaction. The amount of crude material collected from the reaction was 13.56 grams. After the purification, the student collected 8.97 grams of extremely pure material. a. What is the percent recovery of the desired material? b. Is it possible to determine how much of the desired material remained in solution after the filtration? The solubility of acetanilide in hot...
help on question1 and part a and b
70% 9:24 AM Expert Q&A 0.502 g Mass of initial acetanilide (g) 0.370 g Mass of recovered acetanilide (g) Maximum % recovery 85% Your % recovery 73.7% 1.The solubility of acetanilide in your recrystallizing solvent is 5.0 mg/mL@ 10°C. (a.) Calculate the maximum % recovery in this experiment, assuming a 15.0-mL recrystallizing solution is filtered at 10°C. ignore question 1 only answer the rest b)Calculate the % recovery of the acetanilide produced...
please answer all parts I am trying to check my
answers.
Recrystallization of Acetanilide Recrystallization is an important method used by chemists to purify solid compounds. When a chemist conducts a chemical reaction as shown in Scheme 1, it will rarely go to 100% completion, and will frequently produce byproducts. These byproducts and some of the unreacted starting materials will be present in the end as impurities. Chemists need ways to remove these unwanted impurities so they can isolate their...
6.A 12.8 g sample of ethanol (C,H,OH) is burned in a calorimeter with a heat capacity of 5.65 kJ/°C. Assume the heat from the sample is negligible compared to the calorimeter. Determine the initial temperature of the calorimeter if the final temperature is 85.7°C. The molar mass of ethanol is 46.07 g/mol. С-Н,ОН , + 3 О,ее — 2 СОде + 3 Н,0 qrxn -1235 kJ 7. Two solutions, initially at 24.60 °C, are mixed in a coffee cup calorimeter...
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