# Problem: Which of the following is the strongest base? A) CH3NH2, Kb = 4.4 x 10-4 B) C5H5N, Kb = 1.7 x 10-9 C) H2NCONH2, Kb = 1.5 x 10-14 D) NH3, Kb = 1.8 x 10-5 E) C2H5NH2, Kb = 5.6 x 10-4

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###### Problem Details

Which of the following is the strongest base?

A) CH3NH2, Kb = 4.4 x 10-4

B) C5H5N, Kb = 1.7 x 10-9

C) H2NCONH2, Kb = 1.5 x 10-14

D) NH3, K= 1.8 x 10-5

E) C2H5NH2, Kb = 5.6 x 10-4

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Ka and Kb concept. You can view video lessons to learn Ka and Kb. Or if you need more Ka and Kb practice, you can also practice Ka and Kb practice problems.

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What professor is this problem relevant for?

Based on our data, we think this problem is relevant for Professor Begin's class at USF.