Explain ) Which of the following bases is the STRONGEST? The base is followed by its Kb.
A) (CH3CH2)2NH, 8.6 × 10-4
B) CH3NH2, 4.4 × 10-4
C) C6H5NH2, 4.0 × 10-10
D) NH3, 1.76 × 10-5
E) C5H5N, 1.7 × 10-9

Question

Explain  ) Which of the following bases is the STRONGEST? The base is followed by its Kb.
A) (CH3CH2)2NH, 8.6 × 10-4
B) CH3NH2, 4.4 × 10-4
C) C6H5NH2, 4.0 × 10-10
D) NH3, 1.76 × 10-5
E) C5H5N, 1.7 × 10-9

ashley1nonly · Answer

the answer is A

ookawaiioo · Answer

yes you are right

ookawaiioo · Answer

The alkane groups are eletron-donating and will donate electron density via induction to the nitrogen, which will increase it nucleophilicity.

ookawaiioo · Answer

High Kb correlates to high basicity

ashley1nonly · Answer

When i did the acids the higher the ka value the stronger the acid, so if the base is stronger then its gets closer to 7. Wouldnt we want it to get closer to 14 so we would want the smaller value

ashley1nonly · Answer

im thinking C. it smaller so its closer to 14

ookawaiioo · Answer

If you are using Ka, use the pH scale. 

If you are using Kb, use the pOH scale