p.3
Equilibrium Expression for Partition Coefficient
How can the partition coefficient (K) be calculated?
Using the equilibrium expression.
p.4
Equilibrium Expression for Partition Coefficient
What is the equilibrium expression for the partition coefficient (K)?
K = [CH₃NH₂]_(organic solvent) / [CH₃NH₂]_(aq)
p.5
Factors Affecting Partition Coefficient
What does a K value less than 1 indicate?
The solute is more soluble in water than in the organic solvent.
p.5
Solubility and Intermolecular Forces
What type of forces does ammonia form with CCl4?
Permanent dipole-induced dipole forces.
p.5
Solubility and Intermolecular Forces
How do intermolecular bonds affect solubility?
The strength of intermolecular bonds between solute and solvent determines the degree of solubility.
p.3
Calculation of Partition Coefficient
What is the partition coefficient (K)?
It is a ratio used to describe the distribution of a solute between two solvents in the same physical state.
p.1
Equilibrium in Immiscible Solvents
What happens when methylamine is mixed with two immiscible solvents?
An equilibrium is established between the organic layer and the aqueous layer.
p.5
Factors Affecting Partition Coefficient
Why is ammonia more soluble in water than in carbon tetrachloride (CCl4)?
Ammonia and water are polar and form hydrogen bonds, while CCl4 is non-polar and forms weaker dipole-induced dipole forces.
p.4
Equilibrium Expression for Partition Coefficient
What is the equilibrium equation for methylamine partitioning?
CH₃NH₂ (aq) ⇌ CH₃NH₂ (organic solvent)
p.1
Equilibrium Expression for Partition Coefficient
What does the equilibrium expression for the partition coefficient look like?
K = [CH₃NH₂ (organic solvent)] / [CH₃NH₂ (aq)].
p.4
Calculation of Partition Coefficient
How do you calculate the partition coefficient of methylamine?
K = [CH₃NH₂]_(organic solvent) / [CH₃NH₂]_(aq)
p.2
Definition of Partition Coefficient
What is the partition coefficient?
The ratio of methylamine molecules in the organic and aqueous layer once equilibrium has been established.
p.1
Definition of Partition Coefficient
What is the partition coefficient (K)?
The ratio of the concentrations of a solute in two different immiscible solvents at equilibrium.
p.3
Equilibrium in Immiscible Solvents
In what condition can the partition coefficient be calculated using the equilibrium expression?
When the solute is in the same physical state in the two solvents.
p.1
Equilibrium in Immiscible Solvents
What occurs at equilibrium in the context of methylamine partitioning?
The rate of methylamine molecules moving from the organic layer to the aqueous layer equals the rate moving in the opposite direction.
p.5
Factors Affecting Partition Coefficient
What factors determine the partition coefficient (K)?
The solubilities of the solute in the two solvents.
p.5
Factors Affecting Partition Coefficient
What does a K value larger than 1 indicate about methylamine's solubility?
Methylamine is more soluble in the organic solvent than in water.
