2.0 g of a substance in 12 mL of a solvent is extracted with three aliquots...
2.0 g of a substance in 12 mL of a solvent is extracted with three aliquots of 10 mL of an extracting solvent. How much of the substance by mass was extracted out of the original solvent? (Assume K=2)
Homework Answers
Add Answer to:
2.0 g of a substance in 12 mL of a solvent is extracted with
three aliquots...
If 3 g of compound were dissolved in 100 mL of water, how much compound would be extracted by three 10-mL portions of benzene?
The solubility of compound A n water at 25°C įs 3.00 g/100 mL. In benzene at the same temperature, the solubility of compound A is 4.00 g/50mL. If 3 g of compound were dissolved in 100 mL of water, how much compound would be extracted by three 10-mL portions of benzene?
0.070 g of caffeine is dissolved in 4.0 mL of water. The caffeine is extracted from...
0.070 g of caffeine is dissolved in 4.0 mL of water. The caffeine is extracted from the aqueous solution three times in 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, 0.070 g of caffeine is dissolved in 4.0 ml of water. The caffeine...
In this experiment, 0.070 g of caffeine is dissolved in 4.0 ml of water. The caffeine is extracted for the aqueous solution 3 times with 2.0 ml portions of methylene chloride. The methylene chloride extracts are combined and the solvent evaporated resulting in isolated caffeine crystals. Briefly explain why caffeine will prefer the methylene chloride solvent to the water solvent. You need to draw the structures for all three compounds.
QUESTION 5 Recrystalization of the crude aspirin requires 10 mL of Solvent per 3 g of...
QUESTION 5 Recrystalization of the crude aspirin requires 10 mL of Solvent per 3 g of aspirin. How much solvent is needed for the recrystallization of 200 mg of crude aspirin? O .5 mL Ob 20 mL O 0.0.50 mL 0.0.67 mL
Suppose you have 150. mL of a substance with a density of 42.0 g/dm and want...
Suppose you have 150. mL of a substance with a density of 42.0 g/dm and want to determine the mass of the substance. The calculation can be broken down into three steps. First, convert the volume from milliliters to liters. Then, convert the volume from liters to cubic decimeters. Finally, determine the mass of the sample in grams. Show the unit analysis by placing the correct components into the unit-factor slots. The question marks (?) represent the answer to the...
A student dissolves 12. g of sucrose C12H2011) in 200. mL of a solvent with a...
A student dissolves 12. g of sucrose C12H2011) in 200. mL of a solvent with a density of 1.11 g/mL. The student notices that the volume of the solvent does not change when the sucrose dissolves in it. Calculate the molarity and molality of the student's solution. Be sure each of your answer entries has the correct number of significant digits. molarity = 0 molality = 0 x 6 ?
Consider that you prepared a solution by dissolving 1.29 mL of an unknown organic substance (d = 0.953 g/mL) into 29.4 m...
Consider that you prepared a solution by dissolving 1.29 mL of an unknown organic substance (d = 0.953 g/mL) into 29.4 mL of cyclohexane (d = 0.774 g/mL). What is the mass percent of the unknown in the solution? Enter your answer in units of mass percent to three significant figures.
How much heat must be extracted from 750 mL of white wine to cool it from...
How much heat must be extracted from 750 mL of white wine to cool it from 25 °C to 13 °C, if the wine is 9.6% ethanol by weight? Assume the wine can be treated as an aqueous solution of ethanol, with no other components. The molar heat capacity of water is 75.4 J/mol K and of ethanol is 112.1 J/mol K. Also: Show that this corresponds to a wine that is 12% alcohol by volume, or ABV. Clearly state...
How much heat must be extracted from 750 mL of white wine to cool it from...
How much heat must be extracted from 750 mL of white wine to cool it from 25 °C to 13 °C, if the wine is 9.6% ethanol by weight? Assume the wine can be treated as an aqueous solution of ethanol, with no other components. The molar heat capacity of water is 75.4 J/mol K and of ethanol is 112.1 J/mol K. [Bonus: Show that this corresponds to a wine that is 12% alcohol by volume, or ABV. Clearly state...
Complete The Following Flow Chart. Nonelectrolyte Element Pure Substance Solvent Compou If the solubility of KCl...
Complete The Following Flow Chart. Nonelectrolyte Element Pure
Substance Solvent Compou
If the solubility of KCl in 100 mL of H2O is 34 g at 20°C and 43 g at 50°C, label each of the following solutions as unsaturated, saturated, or supersaturated. If more solid is added than can dissolve in the solvent, assume that undissolved solid remains at the bottom of the flask. a. adding 35 g to 100 mL of H20 at 20°C: (select) b. adding 41 g...
QUESTION 5 Recrystalization of the crude aspirin requires 10 mL of Solvent per 3 g of aspirin. How much solvent is needed for the recrystallization of 200 mg of crude aspirin? O .5 mL Ob 20 mL O 0.0.50 mL 0.0.67 mL
Suppose you have 150. mL of a substance with a density of 42.0 g/dm and want to determine the mass of the substance. The calculation can be broken down into three steps. First, convert the volume from milliliters to liters. Then, convert the volume from liters to cubic decimeters. Finally, determine the mass of the sample in grams. Show the unit analysis by placing the correct components into the unit-factor slots. The question marks (?) represent the answer to the...
A student dissolves 12. g of sucrose C12H2011) in 200. mL of a solvent with a density of 1.11 g/mL. The student notices that the volume of the solvent does not change when the sucrose dissolves in it. Calculate the molarity and molality of the student's solution. Be sure each of your answer entries has the correct number of significant digits. molarity = 0 molality = 0 x 6 ?
Complete The Following Flow Chart. Nonelectrolyte Element Pure
Substance Solvent Compou
If the solubility of KCl in 100 mL of H2O is 34 g at 20°C and 43 g at 50°C, label each of the following solutions as unsaturated, saturated, or supersaturated. If more solid is added than can dissolve in the solvent, assume that undissolved solid remains at the bottom of the flask. a. adding 35 g to 100 mL of H20 at 20°C: (select) b. adding 41 g...
Most questions answered within 3 hours.
-
Accent Software faces the following conditions. All of these
support Accent’s use of a market-penetration pricing...
asked 15 minutes ago -
A mathematically inclined friend emails you the following
instructions: "Meet me in the cafeteria the first...
asked 17 minutes ago -
A monopoly sells in two countries . The demand curves in the two
countries are p1...
asked 1 hour ago -
A .15kg rubber ball is bounced off a wall. Before hitting the
wall, the ball moves...
asked 1 hour ago -
A manufacturing company preparing to build a new plant is
considering three potential locations for it....
asked 1 hour ago -
B. If compound Y has approximately the same values of solubility
in toluene as compound X,...
asked 2 hours ago -
Oscar Inc. has inventory in Japan valued at 39,051,000 Yen one
year ago. One year ago...
asked 2 hours ago -
If Canada suffered from "fundamental disequilibrium," and its
government choose not to devalue its currency, a...
asked 2 hours ago -
4. How many input & output Key Value Pairs are passed into,
and emitted out of...
asked 2 hours ago -
Why would your heart not function well if constructed of
skeletal muscle? What is the particular...
asked 3 hours ago -
Please respond to this essay question in full essay form for
Chemistry 1102 Organic and Biochemistry:...
asked 3 hours ago -
Determine the head loss and velocity of flow in a water supply main
of 15.0 cm...
asked 3 hours ago