What weight of a would be removed by successive extractions

Assignment Help Chemistry
Reference no: EM13173642

The distribution co-efficient, k = conc. In ligroin ÷ conc. in water, between ligroin and water for solute A is 7.5. What weight of A would be removed from a solution of 10g of A in 100mL of water by a single extraction with 100mL of ligroin? What weight of A would be removed by four successive extractions with 25-mL portions of ligroin? How much ligroin would be required to remove 98.5% of A in a single extraction?

Reference no: EM13173642

Questions Cloud

Calculate the atomic mass of lithium : The element lithium has two naturally occurring isotopes, 7Li (isotopic mass 7.0160 amu, abundance 92.5 %) and 6Li (isotopic mass 6.0151 amu, abundance 7.50 %). Calculate the atomic mass of lithium.
Identified twenty-five top key critical safety risk factors : Could you share with us whether any of these risks were specifically applicable to an infrastructure project (or any other project) you were involved with?
Explain excess demand for money : At which rate will there be an excess supply of money? What does this mean? Describe in detail the adjustment process in the money market when there is an excess demand for money.
Which formula represents the greatest number of isomers : Which formula represents the greatest number of isomers?
What weight of a would be removed by successive extractions : What weight of A would be removed by four successive extractions with 25-mL portions of ligroin? How much ligroin would be required to remove 98.5% of A in a single extraction?
Developing person thru childhood and adol-berger : Describe the average weight gain of an infant during the first year of life. How do the size and proportions of an infant's body change during the first 2 years?  Child psychology and this question is based on the book, "Developing Person Thru Childh..
Economic scenario of us : The U.S. is in recession and, at last report, GDP was shrinking at a rate of 1% per year. The unemployment rate is rising and now stands at 7%. In recent months, the rate of inflation has been holding steady and is increasing at an annual rate ..
Classic disney-digital animation : Do you love Classic Disney? Do you ov Pixar and DreamWorks digital animation? Do you love one type more than another? Why? What stands out about one that the other can't capture?
What mass of naoh is needed to precipitate the cd2+ ions : A 68.0 mL solution of 0.500 M Cd(NO3)2 is prepared. What mass of NaOH is needed to precipitate the Cd2+ ions from this solution?

Reviews

Write a Review

Chemistry Questions & Answers

  Write the formulas of all possible monobromination products

Write the formulas of all possible monobromination products when cyclopentane is exposed to Br2 in presence of light, rection occurs.

  How much heat (kj) was released by the reaction

When 50 mL of water contains 0.50 moles HCl at 22.5 degrees celsius is added to 50.0mL of water containing 0.50 mol NaOH at 22.5 degrees celsius in a calorimeter, the temperature of the solution increases to 26.0 degrees celsius.

  How high does the water rise in the graduated cylinder

you have 100 mL graduated cylinder containing 50 mL of water. you drop a 154 g piece of brass (d= 8.56 g/cm3) into the water. how high does the water rise in the graduated cylinder?

  Calculate the cell potential

Calculate the cell potential after the reaction has operated long enough for the [Al3+] to have changed by 0.32 mol/L. (Assume T = 25°C.)

  How much heat is evolved per gram of fuel burned

3.8 g of a hydrocarbon fuel is burned in a calorimeter that contains 234 grams of water initially at 25.00 ?C. After the combustion,the temperature is 26.55 ?C.

  What is the minimum mass of each reactant necessary

What is the minimum mass of each reactant necessary to produce 200 g of sulfuric acid in nthe following reaction?

  Explain why is the chemiluminescence even more pronounced

If you had a stoppered flask with basic luminol and then opened it to the air, why would the chemiluminescence be more pronounced than with the flask stoppered? Why is the chemiluminescence even more pronounced with the ferricyanide/hydrogen perox..

  What is the percentage of the water was in the hydrate

a 5.0g sample of a hydrate of CaCl2 was heated, and only 4.3 g of the anhydrous salt remained. what is the percentage of the water was in the hydrate?

  What is the half life for the reaction if decrease

what is the half life for this reaction B) how long will it take for the concentration of SO2Cl2 to decrease to 25 percent of its initial concentration C) if the inital concentration of SO2Cl2 is 1.00 M

  What is the minimum mass of nahco3 that must be added

If 30 mL of 6.2 M H2SO4 was spilled, what is the minimum mass of NaHCO3 that must be added to the spill to neutralize the acid?

  How many grams of acetic acid are in vinegar

If 3.50ml of vinegar needs 42.0ml of 0.130M NaOH to reach the equivalence point in a titration, how many grams of acetic acid are in a 1.20qt sample of this vinegar?

  Use the chemical formula to determine the number of moles

First determine the number of moles of rm Na^+ using the given molarity and volume. Next, use the chemical formula to determine the number of moles of rm Na_3PO_4 needed. Finally, convert moles to grams using the molecular weight of the compound.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd