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substance A has a smaller heat of vaporization than substance B. Which will undergo a larger change in vapor pressure for a given temperature?
Estimate Keq for the following equilibria at 425 K. Note that H2O is present as a gas rather than as a liquid. R = 8.3149 J/(mol*K).
The remains of an old campare are unearthed and it is found that there is only 80% as much radioactive carbon-14 in the charcoal samples from the campare as there is in modern living trees
What mass of NaCl is needed to react with 35.0 mL of the same AgNO3 solution?
draw the structure or structures of ALL the carbocations that could potentially form from the alkenes, and 3) label each carbocation as primary, secondary, or tertiary.
A compressed gas cylinder contains 1.00 x 103 g of argon gas. The pressure inside the cylinder is 2050 psi at a temperature of 18oC. How much gas remains in the cylinder if the pressure is decreased to 650psi at a temperature of 26oC?
What are the percentages of each molecular ion? (List to nearest 1% in order of increasing mass separated by commas, e.g. 55,45.)
The freezing point depression constant, Kf, for water is 1.86?C/m. Suppose that 5.00 g of mercury(I) nitrate was dissolved in 100.0 g of water.
You are expected to design a car that works with photovoltaic panels. Assume that the driver is 75kg and the expected speed is 50km/hr.
What is the concentration of in mass percent? An aqueous solution has a vapor pressure of 81.9 at 50 . The vapor pressure of pure water at this temperature is 92.6.
How would the ground-state energy levels of X and H compare (where X is an atom with one electron like Hbut different energy levels)? For X: E = - (RH / n3) and RH is the same as H (2.179 ×10?18J).
Explain how the enthalpy, entropy, and free energy of this system change as the dissolving process proceeds. 2. Of the three parameters, AS, AH, and AG, specified in part 1, which has a sign diferent from the other two? Explain.
What is the equilibrium concentration of N2 in water when the pressure of N2 above the solution
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