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Exactly 350.00 ml of a soltuion containing 685.0 ppm Ba(NO3)2 were mixed with 310.00 mo of a solution that contained 0.0240 M Al2(SO4)3. What was the molarity of the unreacted reagent [Al2(SO4)3] or Ba(NO3)2]?
Why are acidic substituents on the aromatic rings helpful in conducting the suzuki coupling reaction in water?
Calculate D for hemoglobin in water at 25 degrees celsius ( ? = 0.89 cP ), given that Vm= 48000 cm^3/mol for hemoglobin. Assuming the molecules are spherical and estimate the volume of a molecule as Vm/ Na.
A solid block of exactky 100.0 cm 3 has a mass of 153.6g. Determine its density. Will the block sink or float on water?
What is the PH of the buffer that results when 12.0 g of NaH2PO4 and 8.00 g of Na2HPO4 are diluted with water to a volume of .50 L? (Ka of H2PO4=6.2*10^-8, the molar masses are 120.0 g/mol and 142. mol respectively.
Write a net ionic equation for the reaction between aqueous solutions of perchloric acid and rubidium hydroxide.
Blending of two wines with different concentrations of acid, Two wines are available for blending: One tank of 1000 L has a Titratable Acidity of 9.0 g/L and another tank containing 2000 L has a Titratable Acidity of 0.6 g/L.
the enthalpy of fusion of methanol ch3oh is 3.16 kjmol. how much heat would be absorbed or released upon freezing 25.6
Gold has cubic crystals whose unit cell has an edge length of 407.9 pm. The density of the metal is 19.3 g/cm3. Calculate the number of gold atoms in a unit cell. What type of cubi lattice does gold have
a solution is prepared by dissolving an unknown mass of urea nh22co in enough water to make 100.0 ml of solution. the
What is the maximum work that can be obtained from a 340 L tank of compressed air at 4350 PSI
A 1.00L solution containing 3.50x10^-4M Cu(NO3)2 2.20x10^-3M ethylenediamine(en). The kf for Cu(en)2+ is 1x10^20. What is the concentration of Cu2+(aq) in the solution
A solution is prepared my mixing 40 mL of pentane (C5H12, d = 0.63 g/mL) with 100 mL of hexane (C6H14, d = 0.66 g/mL). Assuming the volumes add upon mixing, Calculate-
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