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A solution contains 3.60 mol of water and 1.50 mol of nonvolatile glucose (C6H12O6). What is the mole fraction of water in this solution? what is the vapor pressure of the solution at 25 degree C, given that the vapor pressure of pure water at 25 degree C is 23.8 torr?
Consider an area-source box model for air pollution above a peninsula of land. the length of the box is 15 km, its width is 80 km, and a radiation inversion restricts mixing to 15 m.
Consider a heat engine operating between 1200 K (TH) and 400 K (TC), What if we combust 1 liter of ethane to supply qh, how much work would we expect
A piece of metal of mass 27 g at 99?C is placed in a calorimeter containing 45.1 g of water at 21?C. The final temperature of the mixture is 38.7?C.
A cube of osmium metal 1.500cm on a side has a mass of 76.31g at 25°C. Calculate the mass of 0.1500L of benzene at this temperature.
Assume that the heat required for the vaporization of the alcohol comes only from the aluminum block and that the alcohol vaporizes at 25. Suppose that 1.15 of rubbing alcohol evaporates from a 65.0 aluminum block.
What is the dissociation constant, Kd, of a ligand with a percent occupancy (or fractional saturation) of 50% when [ligand] = 10-7 M? HINT; Theta = (ligand) / ((ligand) + Kd) where
a flask that can withstand an internal pressure of 2500 torr, but no more, is filled with a gas at 21.O C and 780 torr and heated. At what temperature will it burst?
Calculate the amount of energy in kilojoules needed to change 423g of water ice at -10 deg c to steam at 125 deg c . The following constants may be useful:
A sample of helium effuses through a porous container 6.5 times faster than does unknown gas X?
What mass of liquid water at room temperature (25 C) can be raised to its boiling point with the addition of 31.0 kJ of energy
Write the unbalanced equation for the formation of ozone gas from oxygen gas. (Include states-of-matter under SATP conditions in your answer.)
How long would it take to electroplate a metal surface with 0.500 g nickel metal from a solution of Ni 2+ with a current of 4.0 A?
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