Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Physical Organic Chemistry
I. Suggest reasonable mechanisms for each of the following reactions.
The starting materials are racemic, unless otherwise stated.
1.
2.
3.
4.
II. The six structures beloware all found to beminima on the [C4H5]+ energy surface. The relative energies from MP2/6-311G(d,p) calculations are shown in kcal/mol. Comment on the stabilizing features that are present in each of these cations.
III. The 13C-NMR chemical shift of the trivalent carbon is a sensitive indicator of carbocation structure. Generally, the greater the chemical shift value, the lower the electron density at the carbon. Data for three different cations with aryl substituents are given below. How do you explain the close similarity of the trend for the first two series and the opposite trend of the third?
A gas diffuses only 0.5 times as fast as an oxygen molecule at the same temperature. Explain what is the molecular weight of the gas
One of the emission spectral lines for Be3+ has a wavelength of 253.4 nm for an electronic transmission that begins in the state with n = 5.
A solution of H2SO4(aq) with a molal concentration of 4.80 m has a density of 1.249 g/mL. What is the molar concentration of this solution
A sample of zinc nitride, Zn3N2, contains 39.0 g of zinc. How many nitride ions are present
The solubility of calcium carbonate (CaCO3) is 9.3 multiplied by 10-3 g/L. Calculate the solubility product of this compound.
2- deoxyglucose is an analogue of glucose that has shown promise as a anti-cancer drug. The molecule can be phosphorylated by hexokinase, and regulates the activity of hexokinase. However, 2-deoxyglucose is not a substrate for glucose-6-phosphate ..
Phosphorous acid, H3PO3(aq), is a diprotic oxyacid that is an important compound in industry and agriculture.( pKa1=1.30, pKa2=6.70.) Calculate the pH for each of the following points in the titration of 50.0 mL of a 2.7 M H3PO3(aq) with 2.7 M KOH..
Explain how the sponge nucleoside cytosine arabinoside and fungal nucleoside cordycepin combat cancer (give their structures as well).
When heated, all metallic hypochlorites decompose and produce oxygen. Considering this, what happens when the decomposition reaction occurs at an incident involving fire? Please reference your answer and tell me why.
Check that in the collision of two structureless molecules the order of magnitude of the pre-exponential factor is of the same order as that predicted by collision theory. Go on to estimate the P factor for a reaction in which , and A and B are no..
What is the boiling point of a solution that contains 6 moles of KBr in 1000 g of water? (K = 0.512 C/m)
What is the molarity of 2500. mL of a solution that contains 160. grams of NH4NO3?
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd