(covers LiOH, NaOH, KOH, RbOH, and CsOH). Bottom line is that the order of basicity is:
CsOH > RbOH > KOH > NaOH > LiOH
A rationale for this order is based on the relative electronegativity of the cations. The order of basicity appears to be inversely related to the electronegativity. Thus the more electropositive the more the cation may associate with the OH-, making it less available to act as a base.
(covers LiOH, NaOH, KOH, RbOH, and CsOH). Bottom line is that the order of basicity is:
CsOH > RbOH > KOH > NaOH > LiOH
A rationale for this order is based on the relative electronegativity of the cations. The order of basicity appears to be inversely related to the electronegativity. Thus the more electropositive the more the cation may associate with the OH-, making it less available to act as a base.
As the size of Cs is very larger than the OH-, therefore lower will be the ionisation energy. As a result easier it would be to break the M-OH bond in water.
As the size of Cs is very larger than the OH-, therefore lower will be the ionisation energy. As a result easier it would be to break the M-OH bond in water.
CsOH.
A nice summary of what is known about these bases can be found at:
Is LiOH a weaker base than NaOH?
(covers LiOH, NaOH, KOH, RbOH, and CsOH). Bottom line is that the order of basicity is:
CsOH > RbOH > KOH > NaOH > LiOH
A rationale for this order is based on the relative electronegativity of the cations. The order of basicity appears to be inversely related to the electronegativity. Thus the more electropositive the more the cation may associate with the OH-, making it less available to act as a base.
CsOH.
A nice summary of what is known about these bases can be found at:
Is LiOH a weaker base than NaOH?
(covers LiOH, NaOH, KOH, RbOH, and CsOH). Bottom line is that the order of basicity is:
CsOH > RbOH > KOH > NaOH > LiOH
A rationale for this order is based on the relative electronegativity of the cations. The order of basicity appears to be inversely related to the electronegativity. Thus the more electropositive the more the cation may associate with the OH-, making it less available to act as a base.
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CsOH
As the size of Cs is very larger than the OH-, therefore lower will be the ionisation energy. As a result easier it would be to break the M-OH bond in water.
CsOH
As the size of Cs is very larger than the OH-, therefore lower will be the ionisation energy. As a result easier it would be to break the M-OH bond in water.
More
VOTE