Pick the one that BEST applies. There is no reaction. A supersaturated solution is one that: a. is at equilibruim, and has [Na+][acetate] > Ksp. b. is at equilibruim, and has [Na+][acetate] < Ksp. c. is NOT at equilibruim, and has [Na+][acetate] < Ksp. d. is NOT at equilibruim, and has [Na+][acetate] > Ksp.
Catalysis and Enzymatic Reactions
Catalysis is the kind of chemical reaction in which the rate (speed) of a reaction is enhanced by the catalyst which is not consumed during the process of reaction and afterward it is removed when the catalyst is not used to make up the impurity in the product. The enzymatic reaction is the reaction that is catalyzed via enzymes.
Lock And Key Model
The lock-and-key model is used to describe the catalytic enzyme activity, based on the interaction between enzyme and substrate. This model considers the lock as an enzyme and the key as a substrate to explain this model. The concept of how a unique distinct key only can have the access to open a particular lock resembles how the specific substrate can only fit into the particular active site of the enzyme. This is significant in understanding the intermolecular interaction between proteins and plays a vital role in drug interaction.
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Pick the one that BEST applies. There is no reaction. A supersaturated solution is one that: |
a. is at equilibruim, and has [Na+][acetate] > Ksp.
b. is at equilibruim, and has [Na+][acetate] < Ksp.
c. is NOT at equilibruim, and has [Na+][acetate] < Ksp.
d. is NOT at equilibruim, and has [Na+][acetate] > Ksp.
From the options I can relate that the salt we are taking about is sodium acetate i.e NaCH3COO.
The solubility reaction of NaCH3COO can be written as,
=> NaCH3COO (s) ------> Na+ (aq) + CH3COO- (aq) Ksp
where Ksp = equilibrium constant of the reaction.
Since the solid component's concentration is not written in the equilibrium constant expression.
Hence the equilibrium constant expression for the above reaction can be written as,
=> Ksp = [Na+ ][CH3COO- ]
where [Na+ ] = saturation or equilibrium concentration of Na+ ions and
[CH3COO- ] = saturation or equilibrium concentration of CH3COO- ions.
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