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A. Predict the delta H, delta S, delta V and delta G for dissolving 60. g benzene (C6H6) in 100. g of toluene (C7H8) at 298 K. State any assumptions made.
B. At 20 degrees C, 0.164 mg of H2 dissolves in 100.0 g of water when the H2 pressure above the water is 1.000 atm. Find the Henry's law constant for H2 is water at 20 degrees C.
What is the concentration of A^3- ions at equilibrium for a 0.10 M solution of a hypothetical triprotic acid H3A, with Ka1 = 6.0 x 10^-3, Ka2 = 2.0 x 10^-8, Ka3 = 1.0 x 10^-14 ?
Identify each of the following unbalanced aqueous reactions as an acid/base reaction (a), a redox reaction (r) or a precipitation reaction (p).
Examining the experimental setup, the students finds an air pocket between the stopper at one end of the U-tube and the electrolyte solution inside the tube
calculate the number of molecules present in each of the following samples.
Estimate the triple point pressure and temperature of water, given that the standard enthalpies of fusion and vaporization are 6008 j/mol and 43990 J/h at 273.15k and 298.15 k, respectively the vapor pressure of water at 25 c is 23.8 torr
The solubility of silver chromate is 0.0287 g/1.0 L of solution. What is the Ksp for Ag2CrO4?
The solubility of barium carbonate,BaCO3, is .0100 g/L . Its molar mass is 197.6 . What is the Ksp of barium carbonate?
A 0.5078g sample of impure nitrobenzene was treated with 1.044g of tin. when the reaction was complete, the residual tin was found to weight 0.338g. Calculate the percentage of nitrobenzene in the sample.
How many grams of dipotassium phthalate (242.3 g/mol) must be added to 700 mL of 0.175 M potassium hydrogen phthalate to give a buffer of pH 6.00?
if 25.0 mL of 0.125 M HCl is neutralized by exactly 14.8 mL of NaOH, what is the concentration of the base?
Calculate the mass of silver nitrate (in grams) in a 145 mL solution of 5.38 M AgNO3.
Acetylene gas (C2H2) is produced as a result of the reaction CaC2(s)+2H2O(l)-> C2H2(g)+Ca(HO)2(aq) if 13g of CaC2 are consumed in this reaction, how much H2O is needed?
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