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which of the following will be more soluble in acidic solution than in pure water? Be(OH)2, CuBr, KClO4,PbSO4,CaCO3
A 0.1000 m aqueous solution of a weak acid, HA, is 1.5% ionized. At what temperature does it freeze? Kf for water = 1.86°C/m.
When 0.100g of graphite is burned completely in a bomb calorimeter(heat capacity =3.344kJ/?C), containing 3000 g of water, a temperature rise of 0.21?C is observed.
suppose you want to find out how many milliliters of 1.0 M AgNO3 are needed to provide 169.9g of pure AgNO3.
Determine the molarity of a solution that is formed by dissolving 21.0 g of CaF2 in a flask and adding water to make 446.2 mL of solution
orbitals in two dimensions indicating the Cartesian coordinates appropriate to the drawing and identity these orbitals as being of sigma or pi symemetry.
If 2 x 10-4 moles of S2O82- in 50 mL solution are consumed in 188 seconds, what is the rate of consumption of S2O82-
calculate the theorretical yield of aspirin if 1.05 g of salicyclic acid is combined with 2.0 mil of acetic anhydride.
what is the phase of matter of the solute and solvent of sterling silver?
An aqueous antifreeze solution is 40.0% ethylene glycol, C_2H_6O_2, by mass. The density of the solution is 1.05 g/ml. Calculate the molality of the ethylene glycol.
What is the standard change in Gibbs free energy of this reaction at 25 °C. Hint: The equilibrium constant is related to the change in Gibbs free energy
At 25 degree C the heat of fusion of Al is 10.6 kJ/mol and the heat of sublimation is 326.4 kJ/mol. What is the heat of vaporization of Al at 25 degree C.
Use this information to estimate the X-X (single-)bond energy in the X2H4 molecule.
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