1) You will need to perform a melting point for the final product. Provide a step-by-step procedure for preparing, running, and interpreting a melting point.
Procedure to perform Melting Point(MP) of final product:
1.Sample preparation- Once the reaction is completed (indicated by progress of reaction using Thin Layer Charomatography single spot for the final product), work up of the reaction mixture is carried out including filtration (may be simple or vacuum filtration i would say vacuum is most appropriate one ), washing with different solvents in which our final product is insoluble so that impurity expelled along with solvents ,drying, and recrystallisation then approx 1 mg compounds which is completely dry is taken on watch glass and loaded in melting point capillary(one side closed). Once it is loaded it is ready for melting point.
2.Running -Before running the melting point machine it should be calibrated using standard compounds , Generally benzoic acid is used for the same( MP=1220C). Once it is calibrated it is ready to hold the already loaded sample in the capillary. Now put the loaded capillary in the melting point apparatus.If somebody was using the apparatus just before you, you must wait for temperature to be at room temperature and it is more easier to perform if you know the melting range. If the synthesised compound is not reported then move its parent molecules for literature.when apparatus started it need much attention till its melting otherwise may cause experimental error. Note down the first point when compound started melting and colse when its melting finished.
Melting point is taken by digitalised apparatus , it can be done manually using Thiele tube.
3. Interpretation - Melting point is also one of the technique to check the purirty of the compounds. If it is having wide range then it would contain impurity, There might be depression in the melting point which is also landmark of contamination. Sharp melting point is indication of pure compound.
1) You will need to perform a melting point for the final product. Provide a step-by-step...
please provide step by step solution
Thank you
(1 point) Use the inner product (5,8) = $* f()g(x) dx in the vector space P(R) of polynomials to find the orthogonal projection of f(x) = 2x2 + 4 onto the subspace V spanned by g(x) = x and h(x) = 1. (Caution: x and 1 do not form an orthogonal basis of V.) projy(f) =
1. After filtering your final product, you find that your product is still wet, but you proceed to take a melting point anyways. The literature melting point of luminol is 319 °C. What do you expect the melting point of your luminol to be? What would you expect the yield to be? Would it be an accurate yield? 2. While going to conduct the chemiluminescence test, you forgot to dilute Solution A. What do expect the effect of your chemiluminescence...
show mechanism and arrows
11.) Provide the mechanism for each step and the final product for the following series of reactions. (5 points) "Y 2.) A8:0, 10, 1.) excess CH31 2.) Ag20, H2O, A 13.) Provide the mechanism for each step and the final product for the following series of reactions. (25 points) 1.) HNO3/H2SO4 2.) Zn (Hg), HCI 3.) HNO/HCI 4.) H30+, A 5.) O o
help with melting point and pure product. thank you Bromination of Stilbene lab would my product be pure and why based on the following data Melting point Crude: 236.4 - 240.2 ℃ Product 238.7-239.9 ℃ Lit melting point: 235-241℃
1. After filtering your final product, you find that your product is still wet, but you proceed to take a melting point anyways. The literature melting point of luminol is 319 °C. What do you expect the melting point of your luminol to be? What would you expect the yield to be? Would it be an accurate yield? 2. While going to conduct the chemiluminescence test, you forgot to dilute Solution A. What do expect the effect of your chemiluminescence...
13.) Provide the mechanism for each step and the final product for the following series of reactions. (25 points) 1.) HNO3/H2SO4 2.) Zn (Hg), HCI 3.) HNO2/HCI 4) H,0, A 5.) o
I need step by step procedure (pleases write a
procedure as to how you will perform your separation) --This should
be written up in sufficient detail so that another student in
Chemistry could follow it to separate and purify your mixture. Be
sure to include details as to how much solvent is used,
concentration of acids and bases, temperatures of any
processes.
Purify a 3 component mixture 2 neutrals and Acid a nontzat neutil acid см, -OM BH 0.50g BE...
Draw the products of these 4 dienes with maleic anhydride.
Provide the melting point of the adduct as well. Thank you.
CH3 β-myrcene M.P. Diels-Alder product: 33-34 CH3 CH3 M.P. Diels-Alder product: 60-61° α-phellandrene M.P. Diels-Alder allo-ocimene M.P. Diels-Alder product: 83-84° product: 126-127
help pls
Why do soluble impurities affect the melting point while insoluble impurities are expected not to affect the melting point? (3 points) Student ID: Section: Mention at least one technique that you have learned during 3210 Ta separating a mixture containing anthracene and toluic acid in 1:1 ratio. Assume luble in ether. Sketch an outline of the separation procedure you will perform in the lab (4 points)
1. What is the expected product melting point if the bromination of stilbene by PHPB is completely stereospecific (anti addition)? 2. How would the melting point be affected if the reaction is not completely stereospecific and the dibromide product contains significant amounts of dl-stilbene dibromide, as well as the expected meso stilbene dibromide? Note the widely differing melting points of the meso and dl isomers. 3. What is the theoretical yield of dibromide product in the bromination reaction? 4. How...