C12H22011> Results analysis: 1. Write the products of the net reaction performed in this experiment and balance the equation. CizH2201 + H, 0- 2. Determine the mass of ethanol in the distillate. (Show calculations clearly)
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- The reaction starts with 0.75 g of piperonal and generates 1.08 g of a solid Recrystallization of this crude product from acetic acid afforded 0.75 g of pure bromopiperonal. Based on this information calculate and report in the appropriate spaces below A) the crude yield, B) the percent recovery from recrystallization, and C) the total yield for the reaction. NOTE: Report all yields as whole numbers. mal prad 7.5 points crude wield = 0.00 (Please type answer no write by hend)In the crude product, explain why you might obtain a yield which appears to be greater than 100%.Draw a five-step Schematic diagram of the procedure on how to separate pure crystals of CuSO4 , Alum and Benzoic acid. (Draw only 1 schematic diagram for the three samples)
- 3. Complete the following table: Fill in the mL used of the two starting materials (from the experimental procedure below) and calculate the moles of each species (show your work, include units). NOTE: Since glacial acetic acid contains water, you do not need to calculate the grams of this reagent; simply use the molarity given to calculate the moles of acid used in the procedure. Which will be the limiting reagent, acetic acid or isoamyl alcohol? Materials Molecular Weight (g/mol) Density (or Molarity) mL used Grams Moles acetic acid 60.05 17.4 M n/a isoamyl alcohol 88.15 0.809 * * * isoamyl acetate 130.19 0.876 *Calculate Theoretical yield of Isoamyl acetate in mL, g and moles (show your work, include units): Moles of isoamyl acetate: Grams of isoamyl acetate: Volume (mL) of isoamyl acetate:[References] Use the References to access important values if needed for this question. Draw a structural formula for potassium benzoate, showing the charges on the cation and the anion. O . You do not have to consider stereochemistry. . You do not have to explicitly draw H atoms. • Draw cations and anions in separate sketchers. + Submit Answer **** Ⓡ ChemDoodle Retry Entire Group ▼ Sn [F 9 more group attempts remaining1. If the weight of the pure recrystallized product (trans-anisalacetophenone) obtained is 166 mg, calculate the number of moles of the pure product obtained? (Molar mass of trans- anisalacetophenone is 238.29 g/mol) [Select] 2. What is the percent yield of the pure product? [Hint: %Yield = (moles of pure product/theoretical yield in moles) x 100] [Select]
- Please answer the question at the bottom, Thanks. LAB NOTES FOR PREPARATION OF BUTYL MAGNESIUM BROMIDEAND ITS SUBSEQUENT CONVERSION TO AN ALCOHOL To the reaction flask were added 2.5967 gram of magnesium turnings, about 20 mlof diglyme, and a solution of 13.5942 gram of butyl bromide in about 25 mldiglyme.The procedure as per the lab manual was initiated. After the required heating timewas completed the reaction mixture was allowed to cool to room temperature.Then a solution of 6.1123 gram of acetone in about 15 ml of diglyme was addeddropwise as per the lab manual.The rest of the lab manual procedure was completed, ultimately affording 2.5532gram of an oily, clear and slightly yellow liquid, presumed to be 2-methyl-2-hexanol. Boiling point as measured by distillation was 138 – 141 deg C.About 0.8 ml of the presumed 2-methyl-2-hexanol was placed in an NMR tube towhich was added 2 drops of TMS. The tube was capped, then inverted and righted20 times to thoroughly mix the product and…Please answer the question at the bottom, Thanks. LAB NOTES FOR PREPARATION OF BUTYL MAGNESIUM BROMIDEAND ITS SUBSEQUENT CONVERSION TO AN ALCOHOL To the reaction flask were added 2.5967 gram of magnesium turnings, about 20 mlof diglyme, and a solution of 13.5942 gram of butyl bromide in about 25 mldiglyme.The procedure as per the lab manual was initiated. After the required heating timewas completed the reaction mixture was allowed to cool to room temperature.Then a solution of 6.1123 gram of acetone in about 15 ml of diglyme was addeddropwise as per the lab manual.The rest of the lab manual procedure was completed, ultimately affording 2.5532gram of an oily, clear and slightly yellow liquid, presumed to be 2-methyl-2-hexanol. Boiling point as measured by distillation was 138 – 141 deg C.About 0.8 ml of the presumed 2-methyl-2-hexanol was placed in an NMR tube towhich was added 2 drops of TMS. The tube was capped, then inverted and righted20 times to thoroughly mix the product and…Starting from crude clove oil, draw flow charts to illustrate the extraction steps. Please answer very soon will give rating surely
- Use the following atomic weights and quantities to calculate the overall % yield of 4-bromo-4'-pentyllbiphenyl. Remember that your yield must be based on the stoichiometry (balance the equation!), the limiting reagent, and that grams must be converted to moles. Filling out most of the chart will help. Give only two significant digits in your answer. If after rounding the answer is a whole number, do not include a decimal point. C = 12, H = 1, Br = 80, Fe = 56 formula formula weight 4-pentylbiphenyl iron 1 M bromine 4-bromo-4-pentylbiphenyl milliliters 0.616 density 3.12 grams 2.347 1.022 moles Answer: 2.985 % yield ?A possible method that can be utilized to verify you formed the correct product is to confirm the melting point of your synthesized alum product and compare that value to the known melting point of pure alum. Another method of verification is to heat the alum in a crucible, which will drive off the water of hydration. The amount of water driven off, and the amount of dehydrated sample, can be compared to see if they are in agreement with the compound’s formula. If a student gently heats a 0.855 g sample of synthesized alum product in a crucible, and then determines that the mass of the dehydrated sample is 0.465 g, does this data support that the compound is a dodecahydrate, in other words, does this support the presence of the 12 water molecules? Why or why not? Show your work.Use the following atomic weights and quantities to calculate the overall % yield of 4-bromo-4'-pentyllbiphenyl. Remember that your yield must be based on the stoichiometry (balance the equation!), the limiting reagent, and that grams must be converted to moles. Filling out most of the chart will help. Give only two significant digits in your answer. If after rounding the answer is a whole number, do not include a decimal point. C = 12, H = 1, Br = 80, Fe = 56 4-pentylbiphenyl iron 1 M bromine → 4-bromo-4'-pentylbiphenyl formula formula weight milliliters density 1.391 3.12 grams moles 3.807 4.937 Answer: 4.274 % yield ?