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 = %
Please calculate the amount of a compound (A) that remains in 10 mL of an aqueous...
Please calculate the amount of a
compound (A) that remains in 10 mL of an aqueous phase after three
extractions with toluene (10 mL each) if the partition ratio
(KD) is
a) KD = 9, b)
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
was diluted to 500 mL with water and was found to have a specific
rotation of -133 degrees. If this solution were mixed with 500mL of
a solution containing 6g 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?
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
solution by each of the following extraction procedures (assume a
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
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tomato sauce containing 2 litres and bags of grated cheese weighing
1 kg. Write a python program to ask the user how many pizzas they
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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+
ions. How many grams of NH4+ ions are in the solution if the
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What is the pH of the titration solution when 25.0 mL of .200 M aqueous formic...
What is the pH of the titration solution when 25.0 mL of .200 M
aqueous formic acid, HCO2H, is titrated with 50.0 mL of
0.100 M aqueous potassium hydroxide, KOH? The Ka for
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A. 8.52
B. 7.00
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D. 8.29
E. 10.26
An aqueous solution containing 50% K2CO3 has a density of 1.5404 g/mL. a) how many grams...
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g/mL.
a) how many grams of K2CO3 are contained in 1 L of solution.
b) Calculate the molarity (mol/L) of the K2CO3 solution
c) Calculate the molarity (mol/kg) of the K2CO3 solution.
Suppose 1.87g of nickel(II) bromide is dissolved in 200.mL of a 52.0mM aqueous solution of potassium...
Suppose 1.87g of nickel(II) bromide is dissolved in 200.mL of a
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molarity of nickel(II) cation in the solution. You can assume the
volume of the solution doesn't change when the nickel(II) bromide
is dissolved in it. Be sure your answer has the correct number of
significant digits. The answer is needed in M. Thank you.
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