Question
In: Chemistry
a) You are given 200 mL of an aqueous solution contianing 10 grams of compound A,...
a) You are given 200 mL of an aqueous solution contianing 10 grams of compound A, from which are asked to separate A. How many grams of A could be removed in a single extraction with 100 mL of ethyl ether? Asummer that the ratio of the concentration of A in ethyl ether to its concentration in water (i.e., the distribution coefficient for A in ethyl ether/water) is equal to 3.0.
b) How many total grams of A can be removed with three successive extractions of 33 mL of ethyl ether for each rinse? [Suggestion: For each extraction let x equal the weight extracted into the ether layer.]
Note: in case (a) the concentration in the ether later is x/100, and the water later is (10-x)/200: the ratio of these quantities is equal to the distribution coefficient.
Solutions
queen_honey_blossom answered 2 years agoRelated Solutions
a) You are given 200 mL of an aqueous solution contianing 10 grams of compound A,...
a) You are given 200 mL of an aqueous solution contianing 10
grams of compound A, from which are asked to separate A. How many
grams of A could be removed in a single extraction with 100 mL of
ethyl ether? Asummer that the ratio of the concentration of A in
ethyl ether to its concentration in water (i.e., the distribution
coefficient for A in ethyl ether/water) is equal to 3.0.
b) How many total grams of A can be...
An aqueous solution containing 10 g of an optically pure compound was diluted to 500 mL...
An aqueous solution containing
10 g
of an optically pure compound was diluted
to
500 mL
with water and was found to have a specific rotation of
−111
°
.
If this
solution were mixed with
500 mL
of a solution containing
7 g
of a racemic mixture of the compound, what would the
specific rotation of the resulting mixture of the
compound?
What would
be its optical purity?
[
α
]D =
Optical purity = %
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KD = 3. Show your calculations.
An aqueous solution containing 10g of an optically pure compound was diluted to 500 mL with...
An aqueous solution containing 10g of an optically pure compound
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a solution containing 6g of a racemic mixture of the compound, what
would the specific rotation of the resulting mixture of the
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A 25.0 mL aqueous solution contains 500.0 mg of a compound. Calculate the amount of solid...
A 25.0 mL aqueous solution contains 500.0 mg of a compound.
Calculate the amount of solid extracted by diethyl ether from the
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distribution coefficient (K) of 5.0 for each extraction):
a. A single 15.0 mL extraction with diethyl ether.
b. A single 150.0 mL extraction with diethyl ether.
c. Three sequential 5.0 mL extractions with diethyl ether.
show work please
A container has 150.0 mL of an aqueous solution containing NH4+ ions. How many grams of...
A container has 150.0 mL of an aqueous solution containing NH4+
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What is the pH of the titration solution when 25.0 mL of .200 M
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B. 7.00
C. 5.71
D. 8.29
E. 10.26
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The molality of ammonium phosphate in the solution
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In the laboratory you are asked to make a 0.150
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How much water should you add?
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