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Problem- A certain substance has a heat of vaporization of 39.85 kJ/mol. At what Kelvin temperature will the vapor pressure be 4.50 times higher than it was at 335 K?
I don't know how to reach these answers thus please show the steps, thank you!
A solution containing 50.0 g NaNO3 in 75.0 g of H20 at 50°C is cooled to 20°. How many grans of NaNO3 remain at 20°.
Identify the following compound from its IR and proton NMR spectra. C6H10O: NMR: ? 3.31 (3H, s); ? 2.41 (1H, s); ? 1.43 (6H, s) IR: 2110, 3300 cm-1 (sharp)
making ice cream involves surrounding the ice cream canister with a bath of salted ice water. to get the mix to freeze
What mass of precipitate will form if 1.50L of concentrated Pb(ClO3)2 is mixed with 0.250L of 0.290 M Nal?
Determine the density of N2O(g) at a pressure and temperature of 0.7982 atm and 304.5 K, respectively.
A gold nucleus is located at the origin of coordiantes and an electron is brought to a position 2 angstrom from the origin. calculate the force between the gold nucleus and the electron
In 0.1592 M solution, a weak acid, HA, is 7.11% ionized. Calculate the ionization constant for the weak acid.
Problem- How many liters of o2 at 298K and 1.00 bar are produced in 2.00 hr in an electrolytic cell operating at a current of .0200 A
Determine the equilibrium total pressure in a closed reaction flask if 0.040 mol of NO and 0.020 mol of O2 were placed in the evacuated reaction flask and heated to 100°C, resulting in a 75%-yield of NO2.
Explain how much heat, in kJ is evolved in converting 1.70 mol of steam at 145 degrees Celsius to water at 95 degrees Celsius. Explain the heat capacity of steam is 2.01 J /g * C the heat capacity of water is 4.18 J / g * C,
Using the same assumptions and approximations you used in lab, determine the molar enthalpy change (in kJ/mol) for the reaction below, assuming that CH3CO2H dissociates completely in water.
Phosphorus pentachloride decomposes as per to the chemical equation PCl5-----PCl3 + Cl2 Kc=1.80 at 250C. A 0.261 mol sample of PCl5 is injected into an empty 3.25 L reaction vessel 250C. Compute the concentrations of PCl5 and PCl3 at equilibrium.
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