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While sitting at the Hula Hut, you accidentally, and drunkedly, knock your frozen Margarita into the warm waters of "Lake " Austin. Given that the margarita can be approximated as 100g of ice at 0 degree C upon entry to the water and that the water temperature is 83.5 degress Farenheit, calculate the change in the entropy of the universe between the time that the contents of the glass enter the lake and when thermal equilibrium is subsequently restored. State any approximations made in your calculation.
the ratio of the no of molecules in the excited state at the temperature of 213 K to the number of ground state molecules and the percent of the excited molecules at 213 K.?
Determine the mass of Cr 3 + in the original solution if The total mass of the precipitate = 49.6 .
Was measured at several temperatures and the following data was collected, Using this data, graph ln k 1/T. using your graph determine the value of Ea please show work and show a graph
If 6.01 grams of Nh3 reacts completely, how many grams of water should theoretically be produced?
an aqueous CaCl2 solution has a vapor pressure of 81.1 mmHg at 50 C. The vapor pressure of pure water at this temperature is 92.6 mmHg.
Calculate the concentration of Cu2+ in a solution prepared by adding 4.9×10^?3mol of CuSO4 to 0.480L of 0.35M NH3.
the standard electrode potentials calculate the standard free energy (kJ) for the given reaction.
What mass of water would need to evaporate from your skin in order to dissipate 1.7 × 105 J of heat from your body? H2O(l) → H2O(g) ΔHvap = 40.7 kJ/mol
Draw the energy profile diagram to show the possible intermediate and the transition states.
determined the limiting reactant and the theoretical yield (in g) of nitrogen that can be formed from 24.0 g N2O4 and 23.5 g N2H4 molar masses are as follows: n2o4 92.02 n2h4 32.05
A graduated cylinder contains 145mL of water. A 10.0g piece of iron (density = 7.86g/cm3 ) and a 22.0g piece of lead are added.
Determine how many grams of oxygen gas would be needed to combine exactly with 13.2 kg of propane (C3H8) gas (the 3 and the 8 are subscripts).
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