Answer :
Final answer:
The pKa value for the acid BH+ when the base B has a pKb of 5.00 is calculated as 9.00 using the relationship that pKa + pKb equals 14.
Explanation:
The value of pKa for the acid BH+ can be determined when we know the pKb value for the base B, and we have the relationship pKa + pKb = 14.00. Given that the base B has a pKb of 5.00, we can calculate the pKa value for its conjugate acid BH+ using this formula:
pKa = 14.00 - pKb
pKa = 14.00 - 5.00
pKa = 9.00
Therefore, the value of pKa for the acid BH+ is 9.00.
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