1. Explain how BH3 gains stability by dimerization ?
2.Explain the chemistry of Borax-bead test.
Hi,
1. Explain how BH3 gains stability by dimerization ? 2.Explain the chemistry of Borax-bead test.
Describe the synthesis and chemistry of nickelocene. How does the stability of nickelocene differ from ferrocene, and explain in detail why?
1. Which test is used for the following a. omission of relevant variables b. parameter stability 2. when can we introduce dummies in models? 3. What is stationarity and Why is it desired to run a model? 4. how do you determine the order of Lags in ARMA model? 5. List and explain the Box - Jenkins model adequacy test for the ARMA/ARIMA
please answer 1-6 and 8 DISCUSSION 1. Does the solubility of borax increase or decrease when the temperature is raised? Explain. 2. Is the forward reaction endothermic or exothermic? Justify your answer 3. Describe the mathematical changes in K, with increase in temperature and relate these numerical changes to the solubility of borax. Explain your anster 4. Calculate the sign and value of AS according to Eq. 12.7. Based on the bal- anced chemical equation for this reaction (Eq. 12.1),...
Hi, Would someone mind helping me with the following organic chemistry question. Please justify/explain your answer. Thank you! ________________ QUESTION 42. For each of the following reactions, circle the major product. Provide a brief explanation for the preferred regiochemistry of addition in each reaction. H2O, H HO (rac) OH (rac) Explanation: 1. BH3 2. NaOH, H2O2 HO (rac) (rac) Explanation: 1= { 1. Hg(OAC)2, H,0 2. NaBH OH HO (rac) (rac) Explanation:
Q3/ (15 Marks) Explain the following: 1. Alkene stability. 2. Isomerism structural. 3. Molecular Orbitals of Carbon-Carbon. 4. Inductive Effects.
Q3V (15 Marla) Explain the following: 1. Alkene stability, 2. Ierin structural J. Molecular Orbitals of Carbon Carbon 4. Inductive Effects
A2. (a) Explain how the open-loop polar plot can be used to assess closed-loop stability by applying Nyquist's stability criterion. Apply Nyquist's stability criterion to determine the stability condition for a closed-loop system that is unstable in the open-loop. [30%] = K (b) An unstable system has transfer function given by G(S) in which the gain K is S(S-2) positive. A derivative compensator H(s) = 0.5s + 1 is inserted in the negative feedback path to form a control loop....
Explain the following: 1- Alkene stability. 2- Isomerism structural. 3- Molecular Orbitals of Carbon-Carbon. 4- Inductive Effects.
The experiment of free radical stability.4.0ml of dichloromethane was added to each four 13 *100mm test tubes.to each test tube 1.0ml of a different aromatic hydrocarbon-toluen,ethylbenzene,isopropylbenzene and t-butylbenzene and swirl to mix.under the hood 1.0 M bromine in dichloromethane to each test tube.time was also recorded after addition of bromine,2 minutes,35 seconds. 20 seconds and 14 minutes respectively.1.arrange the four hydrocarbons in order of their reactivity towards bromine,most reactive first and compare with the results.2.write a balanced equation for each...
Orgnie Chemistry 23/ TR 2-320 Organic Chemistry Nomenclature Test Part 1: Name the following molecules: 3-methyi-1-propylnerane 1-propyl-cye lopropy oplopentane 2,5-dimethyl-3 propylhex-2-ene 1. 2. 3. 4-e thy-4propyl- 77-dichl oro-333- 4. ime thulhept-3-une 5. 6. Part6: Cyclohexane For the following molecule: 3-bromo-5-methylcyclohexanol 1. Draw the ring structure. 2. Determine if it is an R- or a 5- structure. (For eaun chiral caro 3. Convert it to chair structure. 4. Draw flipped chair of # 3 structure.