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The free energy change Delta Gt at 500 K is equal to 9.8x10^4 J/mol. Calculate the equilibrium constant at 500 K.
which of the following chemical combinations of the elements would be most exothermic, Na and Cl
Sodium methoxide reaction: Pipet 1.65 mL of a 25% (by weight) solution of sodium methoxide in methanol into a 10 mL reaction flask.
When a 30 mL sample of KOH solution is titrated with a standard solution of 0.411 M benzoic acid, it takes 25.5 mL to reach the equivalence point of the titration. What was the original concentration of the base?
How much energy in kilojoules is required to convert 260 mL of water at its boiling point from liquid to vapor.
The volume of a cylinder in an auto is 0.44L. the cylinder is filled with a gasoline and air mixture at 1.0 atm and then is compressed to 0.073L prior to ignition.
Assuming no energy is transferred to or from the surroundings, calculate the final temperature of the water after all the ice melts.
calculate the temperature of an isothermal flash drum required to vaporize 40% of a liquid mixture of 60mol% isopropanol and 40mol% n-butanol
A helium-filled weather balloon has a volume of 714 L at 23 oC and 759 mmHg. It is released and rises to an altitude of 4.80 km, where the pressure is 495 mm Hg and the temperature is -9oC. what is the volume of the balloon at this altitude.
certain substance has a temperature of 30 oC, a mass of 10.2 g and a density of 1.02 g/cm3. What will the % concentration, temperature, mass and density of 20.0 mL of this solution be?
At 1.00 atm and 0 °C, a 5.04 L mixture of methane (CH4) and propane (C3H8) was burned, producing 18.0 g of CO2. What was the mole fraction of each gas in the mixture? Assume complete combustion.
Calculate [w] when the gas is allowed to expand reversibly to 1 bar pressure a) isothermically and b) adiabatically.
When the cations Na+, K+, Rb+, Cs+ are combined with chloride ion in the gas phase to form ion pairs, which pair formation releases the greatest amount of energy?
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