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For a certain metal, the enthalpy of freezing is -59.8 kJ/mol, and the absolute entropies of the solid and liquid metal are 24.0 and 66.2 J/K.mol, respectively, at the melting temperature. Calculate the melting point of the metal
A gaseous reaction occurs at a constant pressure of 50.0atm atm and releases 74.8kJ kJ of heat. Before the reaction, the volume of the system
when the base was 0.292 M and the cation was 1.89 M. Calculate the equilibrium dissociation constant (Kb).
It takes 55.0 J to raise the temperature of an 10.3 g piece of unknown metal from 13.0C to 24.7 C. What is the specific heat for the metal?
what mass of ammonium chloride can be added to 100 grams of water at 20 degrees celcius before the solution becomes saturated?
Write the nuclear equation for the alpha decay ( production of radioactive decay that may be considered radioactive waste products by the useful production of nuclear energy ) of each nuclide that are products of a nuclear power plant Rn-222, T..
Calculate the rate constant of the catalyzed and uncatalyzed reactions. How many folds of rate enhancement are produced by the enzyme? The rate constant is 13.46 but what is the nuber of folds of enhancement that are produced by the enzyme?
A student takes 185. g of BaCl2, and reacts it according to the following equation: 3BaCl2 + Al2(SO4)3 → 3BaSO4 + 2AlCl3 How many moles of AlCl3 are formed?
A sample of gas is stored in 716 mL tank at 205 kPa and 300 K. The gas is transferred to a different tank with a volume of 925 mL and 325 K. What is the pressure of the gas in the second tank?
Zinc chloride (ZnCl2) is 52.02% chlorine by mass. What mass of chlorine is contained in 66.0 g of ZnCl2?
A 28.0-g sample of water at 260. K is mixed with 51.0 g water at 310. K. Calculate the final temperature of the mixture assuming no heat loss to the surroundings
Determine the formation constant, Kf, of AC5. The solubility of AB(s) in a 1.000-M solution of C(aq) is found to be 0.166 M. What is the Ksp of AB?
At 1.00 atm and 23 C, how many liters of carbon dioxide are formed by the combustion of 3.40g of butane?
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