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A certain liquid has a normal boiling point of 80.1oC, and boils at 62.8oC when the pressure is reduced to 445 torr. What is the heat of vaporization of the liquid?
Consider the following mechanism for the oxidation of bromide ions by hydrogen peroxide in aqueous acid solution
the reaction of copper(I) sulfide with oxygen gas as follows: Cu2(s) + O2(g) ? 2Cu(s) + SO2(g) If 0.330 kg of copper(I) sulfide reacts with excess oxygen, what mass of copper metal may be produced
A manufacturer of bicycles has 4819 wheels, 2305 frames, and 2250 handlebars. How many wheels are left over? How many frames are left over? How many handlebars are left over? Which part limits the production of bicycles?
What are the relative populations of these levels at the boiling if the degeneracy level is 2j+ 1? Is the ground state most highly populated level?
Calculate the initial velocity of a reaction in terms of Vmax if the substrate concentration is 1/2 the Km (substitute and go).
use the wattage of the lightbulb and the time it is on to calculate in joules assume that the cylinder and lightbulb
All molecular compounds may have London, dipole-dipole, and hydrogen-bonding intermolecular forces affecting their physical and chemical properties.
A 13.74 gram sample of an organic compound containing C, H and O is analyzed by combustion analysis and 20.49 grams of CO2 and 6.291 grams of H2O are produced.
The crystal lattice structure of LaF3 is different from those discussed. Assume it is unknown. Using the equation of Kapustinskii, estimate the lattice energy.
a silver chloride precipitate weighing 0.2255 grams was obtained from 0.3448 grams of a soluble salt mixture. calculate
Nitrogen reacts with hydrogen according to the following equation.
a calorimeter containing 200.0 ml of water was calibrated by carrying out a reaction which released 15.6 kj of heat. if
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