Question
In: Chemistry
A compound distributes between benzene (solvent 1) and water (solvent 2) with a distribution coefficient, K...
A compound distributes between benzene (solvent 1) and water (solvent 2) with a distribution coefficient, K = 2.7. If 1.0g of the compound were dissolved in 100mL of water, what weight of compound could be extracted by THREE sequential 10-mL portions of benzene?
What weight of compound could be extracted if ONE 30-mL portion of benzene were used.
If the distribution constant, K were 0.5, for the distribution of a compound between benzene (solvent 1) and water (solvent 2), and equal volumes of the two solvents are used, how much compound will be left in the water after the three extractions.
Solutions
queen_honey_blossom answered 2 years agoRelated Solutions
A compound distributes between benzene (solvent 1) and water (solvent 2) with a distribution coefficient, K...
A compound distributes between benzene (solvent 1) and water
(solvent 2) with a distribution coefficient, K = 2.7. If 1.0g of
the compound were dissolved in 100mL of water, what weight of
compound could be extracted by THREE sequential 10-mL portions of
benzene?
What weight of compound could be extracted if
ONE 30-mL portion of benzene were used.
If the distribution constant, K were 0.5, for the distribution
of a compound between benzene (solvent 1) and
water (solvent 2), and...
Assume an organic compound has a partition coefficient between water and ether equal to 6.90. If...
Assume an organic compound has a partition coefficient between
water and ether equal to 6.90. If there are initially 6.96 grams of
the compound dissolved in 80.0 mL of water, how many grams will
remain in the aqueous layer after extraction with one 25.0 mL
portion of ether?
Solute A has a distribution coefficient of 9.0 between methylene chloride and water. Show that extracting...
Solute A has a distribution coefficient of 9.0 between methylene
chloride and water. Show that extracting a solution containing 1.0
mole of A in 100. mL of water is more efficient if two 25
extractions with methylene chloride are performed rather than a
single 50. mL extraction with methylene chloride.
1) which one is best for crystallization, 2) the solvent in which the compound (solid) is...
1) which one is best for crystallization, 2) the
solvent in which the compound (solid) is too soluble, and 3) the
solvent in which the compound is not sufficiently soluble?
A. Phenanthrene; toluene, 95% ethyl alcohol,
water
B. Cholesterol; ether, 95% ethyl alcohol, water
C. Acetaminophen; toluene, 95% ethyl alcohol, water
D. Urea; hexane, 95% ethyl alcohol, water
Figure 1. Water at 1 K Figure 2. Argon at 1 K Figure 3. Oxygen at...
Figure 1. Water at 1 K Figure 2. Argon at 1 K Figure 3. Oxygen
at 1 K Figure 4. Neon at 1 K a) As demonstrated in the above
figures, explain in detail why water, H2O, expands upon freezing
whereas the other substances in these figures contract upon
freezing. In your answer ensure that you address the bonding,
polarity, density and other relevant factors to describe these
phenomena. b) Draw the structure of water when it freezes. c) Link...
1. Water is the best choice for use as a crystallization solvent whenever possible. Why? 2....
1. Water is the best choice for use as a crystallization solvent
whenever possible. Why?
2. Why do you crystallize your product as slowly as
possible?
3. Why would n-propyl alcohol, CH3CH2CH2OH be more soluble in
water than n-propyl bromide, CH3CH2CH2Br?
1)Put the following chromatography solvent in order of polarity as a chromatography solvent: acetone, n-propanol, water,...
1)Put the following chromatography solvent in order of
polarity as a chromatography solvent: acetone, n-propanol, water,
hexane, diethyl ether, methanol.
2) You will be doing chromatography with a mixture of n-propanol
and water. Would it make sense to add
hexane to this mixture to try and make it work better?
Explain.
5) Two cars full of people took a day trip. Car A had a lot of
little kids and stopped at lots of rest stops and
gas stations to...
2. A spring whose coefficient is k is compressed by length d and a block of...
2. A spring whose coefficient is k is compressed by length d and
a block of mass m is placed right next to the end of the spring.
When the spring is released, the block acquires a velocity and
keeps on moving along a horizontal smooth surface until it reaches
an inclined plane whose angle is θ and whose coefficient of
friction with the block is μ. It travels up the inclined plane for
a while before reaching maximum height....
A weak base, B, (Kb=1.0 *10-7) equilibrates between water (phase 1) and benzene (phase2). a) Define...
A weak base, B, (Kb=1.0 *10-7) equilibrates between water (phase 1)
and benzene (phase2). a) Define the distribution coefficient for
this system b) Explain the difference between the partition
coefficient, K, and the distribution coefficient, D, for this
system. c) Calculate D at a pH of 9 if K=5.0 d) Will D be greater
at pH of 10 than 9? Explain.
Make comparison between: 1. 1-hexene 2. 2-hexene 3. Benzene 4- Pentane According to octane number
Make comparison between:
1. 1-hexene
2. 2-hexene
3. Benzene
4- Pentane
According to octane number
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