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The distribution coefficient, K= Cether/Cwater, is 10 for compound Y. What weight of compound Y would be removed from a solution of 4.0g of Y in 100 mL of water by a single extraction with 100 mL of ether? 1) Describe how you wuld separate a mixture containing benzoic acid and a neutral substance, benzophenone. Both compounds are insoluble in water and solube in ether. 2) what weight of compound would be removed by two extractions using 50 mL of ether each time?
A mixture of gases containing 21.0 g of N2, 106.5 g of Cl2, and 12.0 g of He at 14 oC is in a 50.0 L container. What is the partial pressure of N2?
small protein in 5.00mL aqueous solution has an osmotic pressure of 7.85 torr at 23.1C. What is the molar mass of the protein?
A 100.0 mL sample of 0.10 M NH3 is titrated with 0.10 M HNO3. Compute the pH of the solution before the addition of any HNO3. Kb of NH3 =1.8 × 10-5.
what is the vapor pressure of the solution at 20 °C? Values at 20 degress celsius
how many grams of Na2CO3 (FM 105.99) should be mixed with 5.00 g of NaHCO3 (FM 84.01) to produce 100ml of buffer with pH 10.00.
what is the major type of force that must be overcome to allow each of process below
Table salt and sugar are accidentally mixed A 4.90 g sample is burned and 2.20-g of CO2 is produced What is the mass percentage of salt in the mixture?
What is the enthalpy of this reaction? Assume that no heat is lost to the surroundings or to the coffee cup itself.
Rank each of the following measurements from smallest to largest
How many non-bonding valence electrons are there in a molecule of fumaric acid?
A student wants to dissolve the maximum amount of CaF2 (Ksp = 3.2 * 10^-11 ) to make 1 Liter of aqueous solution. a) Into which of the following solvents should she dissolve the salt ?
Suppose that coal of density 1.5 g/cm3 is pure carbon. (It is, in fact, much more complicated, but this is a reasonable first approximation.)
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