Grignard reagent Normal 0 false false false EN-IE X-NONE AR-SA /* Style Definitions */ table.MsoNormalTable {mso-style-name:”Table Normal”; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-st

Grignard reagentNormal 0 false false false EN-IE X-NONE AR-SA /* Style Definitions */ table.MsoNormalTable {mso-style-name:”Table Normal”; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-parent:””; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin-top:0cm; mso-para-margin-right:0cm; mso-para-margin-bottom:8.0pt; mso-para-margin-left:0cm; line-height:107%; mso-pagination:widow-orphan; font-size:11.0pt; font-family:”Calibri”,sans-serif; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:Arial; mso-bidi-theme-font:minor-bidi; mso-ansi-language:EN-IE; mso-fareast-language:EN-US;}Preparation of Grignard Reagent:-add 3.5 g magnesium to 250ml round-bottomed flask and fit the flask with a water reflux condenser and procure a (CaCl) drying tube which can be attached to the top of the condenser.Add enough anhydrous ether to cover the Mg (12 ml).Heat the flask and add 2.5 ml of bromobenzene in 80 ml of dry ether through the condenser.NOTES:-In the procedure, scale and base quantities on the use of 5g of benzophenone usedThe Grignard solution in this lab is premade and purchased. Determine from Grignard its molarity the correct amount to use. Show calculations.After Grignard reagent is premade :Using a syringe transfer the amount that is calculated of phenylmagnesium bromide from the septum a bottle of the purchased premade solution then add to the dry 3-necked flask.Prepare a solution of benzophenone (21.5g) in dry ether (70ml). Place this solution by using the dropper funnel and add it steadily to the Grignard solution.During the addition, you have to swirl the flask and then cool the flask solution to lab temp.When it cools carefully add the concentrated HCl acid until the aqueous solution is acid to litmus.The solids should be dissolved, maybe you will need to add more ether and water to see two distinct layers.Separate the ether and aqueous layers using a separating funnel and extract the aqueous layer with ether (1 x 25ml).Combine and dry the two ether layers and evaporate the off ether gently using a rotary evaporator.Obtain the weight of the crude product recovered.Recrystallize the product from petroleum ether (bp 60C – 80C).Report the yield, % yield, and the mpt.

Calculate the price of your order

550 words
We'll send you the first draft for approval by September 11, 2018 at 10:52 AM
Total price:
The price is based on these factors:
Academic level
Number of pages
Basic features
  • Free title page and bibliography
  • Unlimited revisions
  • Plagiarism-free guarantee
  • Money-back guarantee
  • 24/7 support
On-demand options
  • Writer’s samples
  • Part-by-part delivery
  • Overnight delivery
  • Copies of used sources
  • Expert Proofreading
Paper format
  • 275 words per page
  • 12 pt Arial/Times New Roman
  • Double line spacing
  • Any citation style (APA, MLA, Chicago/Turabian, Harvard)

Our guarantees

Delivering a high-quality product at a reasonable price is not enough anymore.
That’s why we have developed 5 beneficial guarantees that will make your experience with our service enjoyable, easy, and safe.

Money-back guarantee

You have to be 100% sure of the quality of your product to give a money-back guarantee. This describes us perfectly. Make sure that this guarantee is totally transparent.

Read more

Zero-plagiarism guarantee

Each paper is composed from scratch, according to your instructions. It is then checked by our plagiarism-detection software. There is no gap where plagiarism could squeeze in.

Read more

Free-revision policy

Thanks to our free revisions, there is no way for you to be unsatisfied. We will work on your paper until you are completely happy with the result.

Read more

Privacy policy

Your email is safe, as we store it according to international data protection rules. Your bank details are secure, as we use only reliable payment systems.

Read more

Fair-cooperation guarantee

By sending us your money, you buy the service we provide. Check out our terms and conditions if you prefer business talks to be laid out in official language.

Read more