2. Which nitrogen in the molecule below is more basic (lower pkb)? Nor N(CIRCLE ONE) (2...
Identify the more basic nitrogen atom in each molecule or pair
of molecules below. Enter A or B.
(A) (B) H (A) (B)"H N . (A)
2. Circle the stronger base: methylamine (pkb = 3.36) or ammonia (pKb = 4.75) Which one of the following 0.20 M aqueous solutions has the lowest pH? (Circle) a) KNO3 b) HF c) HNO, d) Al(ClO )3 e) NH Br
4. For the following molecule, which is the most basic nitrogen atom? بال
5. Which molecule of the pair below is more reactive to basic hydrolysis in aqueous sodium hydroxide? Briety explain your choice and show the reaction that occurs for the molecule that you choose. (10 pts) -СН BONUS: How many proton NMR peaks would you , expect for the N,N dimethyl acetamide? Explain brietly 3 5 pts
Please explain how to determine
which is more basic.
Which nitrogen atom is the most basic? 4 NH2 2NH2
1. For the molecule below a) Circle and label all functional groups. b) Name all intermolecular forces present in the molecule: Amane Aromates hetone lendon dspervon Dipale -Dipole Amine Aromatr 2. For the molecule below a) Box in all atoms that can hydrogen bond with water but not with acetone (CH3OCHS) b) Label all electrophilic carbons (use 6*) NH c) Label the least basic nitrogen. НО d) Label the most acidic hydrogen
Consider the indicated protons in the molecules shown below. Circle the molecule with the lower pK, and explain your choice with an appropriate drawing. NH ZE OH оме Но, . Meo b) Ho Ho (Rationalize with a one sentence explanation.) d) Rank the following molecules in order from least acidic to most acidic. Rationalize your choice with an appropriate drawing.
Each of the following heterocycles includes one or more nitrogen atoms. Classify each nitrogen atom as strongly basic or weakly basic, according to the availability of its lone pair of electrons. 5. C) N:
Each of the following heterocycles includes one or more nitrogen atoms. Classify each nitrogen atom as strongly basic or weakly basic, according to the availability of its lone pair of electrons. B) c) N:
When the molecule shown below is acting as a base, is the oxygen or nitrogen more likely to receive the hydrogen? Justify your answer with resonance structures. (Note: Lone-pairs are not shown, but should be included in your resonance structures.) ZI