Yes, we can determine whether a molecule is an acid or a base based on the given pKa value. The pKa value is a measure of the acidity or basicity of a molecule's functional group.
If the pKa value is lower than 7, it indicates that the molecule is an acid. A lower pKa value means the molecule has a greater tendency to donate a proton (H+). Acids are proton donors, so a lower pKa signifies a stronger acid.
On the other hand, if the pKa value is higher than 7, it indicates that the molecule is a base. A higher pKa value means the molecule has a greater tendency to accept a proton (H+). Bases are proton acceptors, so a higher pKa signifies a stronger base.
For example, if a molecule has a pKa of 4, we can conclude that it is an acid. However, if another molecule has a pKa of 10, we can conclude that it is a base.
Can we determine one molecules is acid or base depend on given pka?? How??
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