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What is the change of molar Gibbs energy for the freezing of water at -10C? The vapor pressure of H2O (liquid, -10C) is 286.5Pa. The vapor pressure of H2O (solid, -10C) is 260Pa. At -10C the molar volume of supercooled water is 1.8 x 10^-5 m^3/mol and the molar volume for ice is 2.00 x 10^-5 m^3/mol.
Calculate the wavelength of the light that is absorbed for the electron's transition from n = 5 to n = 6 in Be3+ ion. (ans in nm.)
the mass of the flask is measured when the outside of the flask is wet. However in part B.3 the outside of the flask is dried before its mass is measured.
Briefly explain how a lake with a limestone bed is more resistant to pH changes than a lake with a granite bed
What is delta S for the conversion of 10 g of supercooled water at -10 degrees Celsius and 1 atm to ice at 10-10 degrees Celsius and 1 atm?
Calculate the amount of heat liberated (in kJ) from 383 g of mercury when it cools from 61.0°C to 11.0°C.
Find out the Celsius temperature of 2.49 mol of gas contained in a 1.00 L vessel at 1.8 atm pressure.
The total volume of both metals is measured by the displacement of water to be 426 and the total mass is 4.40 . What percentage of the spheres are copper?
Calculate the mass of silver chloride required to plate 235 mg of pure silver. Silver chloride, often used in silver plating, contains 75.27% .
How much bacterial tissue is produced in a treatment plant for every 1.0 multiplied by 104 kg of wastewater containing 3.0% NH4+ ions by mass?
The half-life for the radioactive decay of U-238 is 4.5 billion years and is independent of initial concentration. How long will it take for 10% of the U-238 atoms in a sample of U-238 to decay?
Calculate the molar mass of a gas if 4.40 g occupies 3.50 L at 560 torr and 41°C.
The entry of Na+ provides a free-energy input of 10.8 kJ/mol under typical cellular conditions (external [Na+] = 143 mM, internal [Na+] =14 mM and a membrane potential = -50 mV). What is the ratio of glucose concentration outside and inside cells?
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