Question
In: Chemistry
You have 2.00g of your organic product dissolved in 60 mL of water. The distribution coefficient...
You have 2.00g of your organic product dissolved in 60 mL of water. The distribution coefficient of this compound in ether and water is 5. How much of your compound would be extracted by one 60 mL portion of ether? How much would be extracted if you used three 20 mL portions instead?
Solutions
Expert Solution
Let x be the amount of organic extracted by one portion of ether.
queen_honey_blossom answered 2 years agoRelated Solutions
You ground your vitamin C tablet and dissolved it in 250. mL of water in a...
You ground your vitamin C tablet and dissolved it in 250. mL of
water in a volumetric flask. You used a 25.0 mL aliquot of this
solution for your titration. If it takes 11.50 milliliters of your
0.0151M titrant, how many milligrams of ascorbic acid (MW 176.12)
were in the original tablet?
1.13 g caffeine was dissolved in 60 mL water. The solution was extracted with 3 portions...
1.13 g caffeine was dissolved in 60 mL water. The solution was
extracted with 3 portions of 20 mL methylene chloride. How much
caffeine is left in the water after the extractions? Show your
work.
The solubility of caffeine in water is 2.26 g/100 mL at 25
degrees C.
The solubility of caffeine in methylene chloride is 8.42 g/100
mL at 25 degrees C.
A quantity of 6.732 g of an organic compound is dissolved in water to make 270.0...
A quantity of 6.732 g of an organic compound is dissolved in
water to make 270.0 ml of solution. The solution has an osmotic
pressure of 1.43 atm at 27 C. The analysis of this compound shows
that it contains 41.8% C, 4.7% percent H, 37.3% O, and 16.3% N.
Calculate the molecular formula of this compound
The 30 ml of water with zero dissolved oxygen is placed in a 40 ml vial...
The 30 ml of water with zero dissolved oxygen is placed in a 40
ml vial and sealed. The rest of the vial initially contains air
with 21.0% oxygen by volume. What will be the equi-librium
concentration of oxygen in the water, and the partial pressure of
the oxygen in the air in the vial?
A student dissolved 10.5 g of NH4Cl in 40 mL of water. The temperature of the water...
A student dissolved 10.5 g of NH4Cl in 40 mL of
water. The temperature of the water changed from
22.5oC to 5.1oC. Calculate the
enthalpy of hydration of ammonium chloride in J/mol.
1. A student collected the data below while
performing a kinetics experiment.
Trial
Volume of 2.0 M Reactant A
Volume of 0.5 M Reactant B
Volume of H2O
Time for B to react
1
10 mL
10 mL
30 mL
135 sec
2
20 mL
10 mL
20 mL
69 sec...
Codeine (C18H12NO3) is a weak organic base when dissolved in water. It ionizes as follows: C18H12NO3...
Codeine (C18H12NO3) is
a weak organic base when dissolved in water. It ionizes as
follows:
C18H12NO3 (aq) +
H2O ⇌
C18H12NO3H+ (aq) +
OH- (aq)
The pH of a 5.0 * 10 -3 M solution of codeine
equals 9.95. What is the equilibrium concentration of Codeine
[C18H12NO]eq in this
solution?
Codeine (C18H12NO3) is a weak organic base when dissolved in water. It ionizes as follows: C18H12NO3...
Codeine (C18H12NO3) is
a weak organic base when dissolved in water. It ionizes as
follows:
C18H12NO3 (aq) +
H2O ⇌
C18H12NO3H+ (aq) +
OH- (aq)
The pH of a 5.0 * 10 -3 M solution of codeine
equals 9.95. What is the equilibrium concentration of Codeine
[C18H12NO]eq in this
solution?
In this experiment, 0.100 g of caffeine is dissolved in 4.0 mL of water. The caffeine...
In this experiment, 0.100 g of caffeine is dissolved in 4.0 mL
of water. The caffeine is extracted from the aqueous solution three
times with 2.0-mL portions of methylene chloride. Calculate the
total amount of caffeine that can be extracted into the three
portions of methylene chloride. Caffeine has a distribution
coefficient of 4.6, between methylene chloride and water.
In this experiment, 0.170 g of caffeine is dissolved in 10.0 mL of water. The caffeine...
In this experiment, 0.170 g of caffeine is dissolved in 10.0 mL
of water. The caffeine is extracted from the aqueous solution three
times with 5.0-mL portions of methylene chloride. Calculate the
total amount of caffeine that can be extracted into the three
portions of methylene chloride. Caffeine has a distribution
coefficient of 4.6 between methylene chloride and water.
1. If 40.0 mg of methadone is dissolved in 100.0 mL of water, what is the...
1. If 40.0 mg of methadone is dissolved in 100.0 mL of water,
what is the pH of the resulting solution?
2. The average biological half-life of methadone is 22 hours. If
the process that breaks down is second order, what is the rate
constant for the breakdown of the 100.mL solution in question
1?
3. What is the ∆Go for the protonation of methadone at 25 C?
The conjugate acid has a Ka of 3.98 x 10 .
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