# Problem: a. Given that Ka for HCN is 6.2x10-10 at 25°c, what is the value of Kb for CN- at 25°c?b. Given that Kb for NH3 is 1.8x10-5 at 25°c, what is the value of Ka for NH4+ at 25°c?

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###### FREE Expert Solution
88% (214 ratings)
###### Problem Details

a. Given that Ka for HCN is 6.2x10-10 at 25°c, what is the value of Kb for CN- at 25°c?

b. Given that Kb for NH3 is 1.8x10-5 at 25°c, what is the value of Ka for NH4+ at 25°c?

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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Our tutors rated the difficulty ofa. Given that Ka for HCN is 6.2x10-10 at 25°c, what is the v...as medium difficulty.

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Based on our data, we think this problem is relevant for Professor Bell & Paul's class at PITT.