Please note that the picture of the reaction is found below the question. Please

Question

Please note that the picture of the reaction is found below the question. Please, I would like to know how to calculate the volume of furan that I will need to use in this lab experiment. Here it says, Add 3.0 mL of a 4M maleic anhydride solution in methylene chloride to a screw cap test tube. Calculate the volume of furan necessary if 1:1 molar equivalents are required to make the reaction go to completion. Add this amount to the test tube and gently swirl to mix contents. Cover the top of the test tube, set aside for 24-48 hours... Thank You In Advance!! The Diels-Alder Reaction ntroduction In this experiment, you will perform a Diels-Alder reaction between furan and maleic anhydride nd use the melting point of the product to determine whether you formed the endo or the exo adduct. 24-48 h diels-alder adduct m.p. (endo) = 80 °C m.p. (exo)114 °C furan maleic anhydride The Diels-Alder reaction is a 1,4-cycloaddition reaction that was developed in 1928 by two german chemists, Otto Diels and Kurt Alder. The reaction has proven to have such great versatility and synthet utility that Diels and Alder were rewarded the Nobel Prize for chemistry in 1950. Complete details abo the reaction and the mechanism of the reaction can be found in your textbook (Wade) on pages 680-69 Procedure: Week I: Add 3.0 mL of a 4M maleic anhydride solution in methylene chloride to a screw cap test tube. Calculate the volume of furan necessary if 1.1 molar equivalents are required to make the reaction got completion. Add this amount to the test tube and gently swirl to mix the contents. Label the vial with both lab partner's names. Cover the top of the test tube with a piece of aluminum foil, cap the test tube seal it with parafilm, and set it in a safe place until the next lab period, as the reaction takes 24-48 hour to complete. ***End week 1 procedure*** Week 2: Isolate the crystals by vacuum filtration using a Hirsh funnel, and wash with a small amount o The product must be purified using recrystallization. To make the dissolution process faster ice-cold CH Ch. Allow the crystals to dry while filtering pulverize the crystalline solid into a fine powder. Place the solid into a 25 mL. Erlenmeyer flask, and dissolve the product in a minimum amount of acetone at room temperature. Slowly drip hexanes into t flask with swirling until the solution becomes cloudy. Place the flask in an ice-bath to complete the crystallization (5-10 min). Collect the crystals by vacuum filtration using a Hirsh funnel, and wash hn crystals with a small amount of ice-cold hexanes. Let the crystals drv ohtain Compare the melting point to the kn

Explanation / Answer

he has given clearly 1:1 molar equilents it means one equilent of furan required one mole of maleic anhydride

first calculate the moles of maleic anhydride

we have 3.0 mL 4M solution

formula for no of moles = molarity x volume in Liters

so convert volume in to liters 3.0 mL = 0.003 L

moles of maleic anhydride = 0.003 x 4 = 0.012 moles of maleic anhydride

he said that 1:1 molar equilents so

0.012 moles of Maleic anhydride required 0.012 moles of furan

from the moles we can calculte weight of furan

weight = moles x molar mass

= 0.012 x 68.08 (molar mass of furan taken from wiki)

= 0.817 grams

now convert grams to volume using

density = mass / volume

volume = mass / density

= 0.817 / 0.936

= 0.873 mL furan you have to take

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