1. pkb = 2.7
2. aniline pkb = 9.4
3. acetamide pkb = 14.5
reason By increasing kb value basicity increases,so that pkb
decreases.
Select the correct pKb for each molecule shown below and explain reasoning if you can
2. Identify the most acidic proton in each molecule below. Explain your reasoning. A. в.о C. 3. Four phenolic acids are presented below (A-D). Predict the relative acidity (strongest to weakest acid) o
Can you explain how to do these
types of problems??
For each molecule shown identify the value of the molecular ion peak. If present comment on the M+ 2 peak as well. 2. a.
Below you can find the skeletal of vitamin A. Select the best
answer to reflect the polarity of this molecule. Can you also help
with determining the polar/nonpolar parts of the molecule (like in
general are carbon rings polar or not)?
12. Below you can find the skeletal structure of vitamin A. Select the best answer to reflect the polarity of this molecule. a. this is a polar molecule b. this is a non polar molecule c. it is equally...
Select the most correct name for the molecule below. + HC
A molecule that can be described by multiple resonance forms: Select the correct answer below: possesses an electronic structure described by only one of the resonance forms O will rapidly fluctuate in electronic structure between the resonance forms will have an electronic structure that is an average of the resonance forms none of the above
1. Identify the most acidic proton in each molecule. Briefly explain your reasoning based on structure (stating the pKa value is not enough, here. You must bring in factors related to ARIO). OH HACO NO2
Shown below are three models that can be used to represent a molecule of ammonia. H-N-H IZ: Select two of the models. Indicate clearly which models you selected, and describe (a) one aspect of the ammonia molecule that the model represents accurately/ well, and (b) one aspect of the ammonia molecule that the model does not represent accurately/well.
Identify each functional group shown in bold letters. For each molecule shown below: 1) circle any bonds which have considerable polarity, 2) Indicate which atoms arc positive or negative, and 3) tell whether or not the overall molecule is polar The infrared spectrum of a molecule shows peaks at 3000, 1700, 1400 and 1200 cm^-1 Which of the molecules drawn in Part 3 would produce this spectrum? Explain how you made your choice. List each of these halides as primary,...
2. Which nitrogen in the molecule below is more basic (lower pkb)? Nor N(CIRCLE ONE) (2 points)
Assign the peaks in the 1H NMR shown below to the correct
protons in molecule 2. The portuon of the NMR between 8-6.5 ppm has
been magnified for easier viewing.
4) Assign the peaks in the 'H NMR shown below to the correct protons in molecule 2. The portion of the NMR between 8-6.5 ppm has been magnified for easier viewing. 2H 1H2H1H Зн molecule 2 Зн PPM