What is the percent yield of the lab procedure below? my final weight of the product is 0.0519 g
what would be the percent yield if the final weight of my product is 0.1357g this is a green chemistry wittig reaction to produce 1,4-diphenyl-1,3-butadiene from benzyltriphenylphosphonium chloride and trans- cinnamaledyde using sodium hydroxide as the base You will be using a Green Chemistry Wittig reaction (NOT Wittig-Horner Emmons reaction) to produce 1,4-diphenyl-1,3-butadiene starting with benzyltriphenylphosphonium chloride and trans- cinnamaledyde using sodium hydroxide as the base. This reaction is considered a "green" reaction, because an aqueous solution will be used...
Determine the theoretical yield and limiting reagent Running the Reaction Add 0.100 g benzil and 0.30 mL 95% ethanol to a 3-mL conical vial. Place a spin vane in the vial and attach an air condenser. Heat the mixture with an aluminum block (90-100°C) while stirring until the benzil has dissolved (see inset in Tech- nique 6, Figure 6.1A). Using a 9-inch Pasteur pipette, add dropwise 0.25 mL of an aqueous potassium hydroxide solution' downward through the condenser into the...
Place 3.0 g of salicylic acid in a 125-ml Erlenmeyer flask. Carefully add, stirring constantly, 6 mL of acetic anhydride, followed by 10 drops of concentrated sulfuric acid. Swirl the contents of the flask so that the reactants are thoroughly mixed. Stopper the flask with a one- hole cork fitted with an inverted Pasteur pipet to prevent condensation of water in the reaction flask during heating on the steam bath. Heat the flask in a boiling-water or steam bath for...
Find %yield please the product obtained was 0.0870g In the hood, place 100 mu L of aniline in a tared 10 times 75 mm (small) test tube. Place the test cube in a small beaker or Erlenmeyer flask to avoid spillage. Stopper the cube with a cork. Now, using a Pasteur pipet, add (with swirling) 0.5 mL of water, followed by three drops of concentrated HCI. Add 10 mg of decolorizing charcoal (we use the pelletized form, called Nonrit^TM) to...
How can the NMP oxalate salt be converted back to NMP? Here is the procedure: PROCEDURES Part A: Synthesis of (±)-N,N-dimethyl-3-phenyl-3-(4-trifluoromethylphenoxy)propanamine To the 250-mL round-bottom flask (RBF) containing (±)-3-(dimethylamino)-1-phenylpropanol (product from Lab 6) and a magnetic stir bar, add 4 mL of 4-chlorobenzotrifluoride and 30 mL of dimethylacetamide (DMA). With stirring, add to this mixture 30 mL of 1.0 M potassium tert-butoxide (caustic alkali!) in tert-butyl alcohol using a syringe. Using a simple distillation apparatus, distill the mixture slowly, with...
this is the procedure of melting point experiment ( preparation acetanilid) I want the summarize of this procedure EXPERIMENTAL PROCEDURE Measure 0.100 to 0.125 g of aniline (in dropper bottles near the balances) into a tared reaction tube from the microscale kit and record the weight to the nearest milligram. Add 2 mL of distilled water and 6 to 7 drops (an excess amount, 21 drops =1 mL) of acetic anhydride. Stir the mixture for about 4 minutes untiha solid...
Find the crude yield and percent yield of trans-4-methoxycinnamic acid Find the crude and percent yield of ethyl trans-4 methoxycinnamic acid Synthesis of trans-4-methoxycinnamic acid 0.585 gused To a 25 mL round-bottom flask equipped with a stir bar, add 1 mL of pyridine (Caution! Pyridine is toxic!) followed by 320 mg of 4-methoxybenzaldehyde, 320mg 10. 200ML 585 mg of malonic acid and 33 mg of B-alanine. Clamp the round-bottom flask Ucdi over a stir plate in a sand bath and...
Propose another way of synthesizing NMP from the amino ketone hydrochloride salt starting material you used. Part A: Synthesis of (t)-N,N-dimethyl-3-phenyl-3-(4- trifluoromethylphenoxy)propanamine 1. To the 250-mL round-bottom flask (RBF) containing (t)-3-(dimethylamino)-1-phenylpropanol (product from Lab 6) and a magnetic stir bar, add 4 mL of 4- chlorobenzotrifluoride and 30 mL of dimethylacetamide (DMA) 2. With stirring, add to this mixture 30 mL of 1.0 M potassium tert-butoxide (caustic alkali!) in tert-butyl alcohol using a syringe 3. Using a simple distillation apparatus,...
What is the theoretical yield (in grams) and percent yield of your triphenylmethanol product in this experiment? Assume that you have collected 0.15g of Triphenylmethanol for the question. Reaction Set Up ---- ALL glassware NEEDS to be DRY!!! Anhydrous CaCl2 -Drying tube 53 mg Mg turnings Claisen adapter + 2 mL anhydrous ether + 260 ul bromobenzene Air condenser Stir until reaction amber. Heat slowly to reflux for 10 min. Cool the reaction in ice bath for 5 min. Use...
I need help finding the theoretical yield (in grams) of triphenyl methanol product in this experiment. PLEASE SHOW WORK, I would like to learn the steps. below is pictures of the procedure with amounts of chemicals used 126 Experiment 10 EXPERIMENTAL PROCEDURE All glassware used in a Grignard reaction must be scrupulously dried, Dry the following glasstare in an af 110°C for at last 20 mini drying to Canadair 8 ml comical rial 5 ml con vial, air cond glass...