Which of the following bases is the weakest?
1)(CH3)2NH , Kb = 5.1 x 10–4
2)ClO–, Kb = 2.9 x 10–7
3)SO42–, Kb = 8.3 x 10–13
Im thinking the answer is 2, but im not100%
the larger Kb, the stronger. Isn't 1 the larger Kb? The weakest, 3.
check my thinking
To determine which of the following bases is the weakest, we need to compare their values of Kb (base dissociation constant).
The base with the smallest value of Kb will be the weakest base.
Comparing the values of Kb for each option:
1) (CH3)2NH , Kb = 5.1 x 10–4
2) ClO–, Kb = 2.9 x 10–7
3) SO42–, Kb = 8.3 x 10–13
Between options 1 and 2, (CH3)2NH has a larger Kb value, which means it is a stronger base than ClO–.
Comparing options 2 and 3, ClO– has a larger Kb value than SO42–, indicating that ClO– is a stronger base than SO42–.
Therefore, between the three options, option 3 (SO42–) has the smallest value of Kb, making it the weakest base.
To determine which of the following bases is the weakest, you need to compare their respective base dissociation constants (Kb). A lower Kb value indicates a weaker base.
1) (CH3)2NH, Kb = 5.1 x 10–4
2) ClO–, Kb = 2.9 x 10–7
3) SO42–, Kb = 8.3 x 10–13
From the given options, we need to find the base with the smallest Kb value. Comparing the provided values, it is clear that option 3, with a Kb value of 8.3 x 10–13, has the smallest Kb value among the three options. Therefore, option 3, which corresponds to SO42–, is indeed the weakest base.