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Suppose that 194.2 J of heat energy is required to completely vaporize 3.3 g of a pure liquid. If the molar mass of the liquid is 91.92 g/mol, what is the molar enthalpy of vaporization of the liquid?
Which of the functions : sin3x, 6cos4x, 5x^3, 1/x, 3e^-5x, ln 2x, are eigenfunctions of d^2/dx^2. For each eigenfunction, state the eigenvalue.
Calculate the final temperature when a 24.7 gram sample of ice at 0oC is placed into a styrofoam cup containing 126 grams of water at 78.0 oC. Assume that there is no loss or gain of heat from the surroundings.
Draw the product that is formed when the compound shown below is treated with an excess of hydrogen gas and a platinum catalyst.
The standard entropy of Pb(s) at 298.15k is 64.80 jk-1 mol-1. assume that the heat capacity of Pb(s) is given by Cp,m (Pb,l)/jk-1mol-1 = 32.51 -.00301 t/k. calculate the standard entropy of Pb (l) at 650 C. calculate delta H for the transformation..
A backpacker wants to carry enough fuel to heat 2.7 of water from 30 to 100.0 . If the fuel he carries produces 36 of heat per gram when it burns, how much fuel should he carry? (For the sake of simplicity, assume that the transfer of heat is 100 ..
Calculate H0rxn for the decomposition of tetrazene, N4H4 (atom sequence H2NNNNH2) to hydrazine (N2H4) gas and dinitrogen gas.
What is the freezing point of a solution that contains 12.0 g of glucose (C6H12O6) in 50.0 g of water (Kf = 1.86°C/m)
calculate the total length obtained when you add 12.3cm, 2.75dm, and 0.450m. give the answer in centimeters
the maximum velocity of the ejected electrons is 3.45 multiplied by 105 m/s. Calculate the binding energy of electrons to the magnesium surface.
Calculate delta S for the heating of 1 mole of SO2(g) from 75°C to 1350°C at a constant pressure of 1 bar.
Assuming complete dissociation of the solute, how many grams of KNO3 must be added to 275 mL of water to produce a solution that freezes at -14.5 C?
What is the concentration of HCl in the final solution when 65 mL of a 12 M HCl solution is diluted with pure water to a total volume of 0.15 L
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