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In an effusion experiment, it was determined that nitrogen gas, N2, effused at a rate 1.812 times faster than an unknown gas. What is the molar mass of the unknown gas?
Express your answer to four significant figures and include the appropriate units.
What is the percent-yield of H2 in the reaction below when an equimolar mixture of CH4 and CO2 with an initial total pressure of 20.0 atm reaches equilibrium at 1200. K, at which Kp = 3.548 x 106
What is the pH of a solution made by titrating 30.0 mL of 0.10M acetic acid with 30.0 mL of 0.10 M KOH? Assume that the volumes of the solutions are additive.
Using a table of thermodynamic data calculate, the Delta H degrees for the following reaction (at 25 degrees C).
calculate the amount of heat required to completely sublime 35.0 of solid dry ice at its sublimation temperature. the
Metalloids conduct electricity better than nonmetals but not as well as metals
What are the seven redox reactions of these species of Mn2+?Mn2+ Mn(OH)2 (s) Mn3O4 (s) Mn2O3 (s) MnO2 (s) H2O H+ e-
molar cuso4aq and pbno32aq solutions are in separate compartments of a voltaic cell. if sulfuric acid is then added to
An organofluorine compound has a density of 0.773 g/L at 18.5 C and 223 mm Hg pressure. calculate the molar mass of the compound
For each state indicate if the water is a compressed liquid, saturated liquid, saturated mixture, saturated vapor, or superheated vapor. If the exact state cnnaot be determined from the information given, include all possible states.
What is the limiting reactant when ammonium chloride is synthesized from 1.0 atm of hydrogen chloride gas and 1.5 atm of ammonia gas at a constant temperature and volume
Compare the temperature of your water bath at the time of reflux with the boiling point of your solvent
What fraction of iodine -131 remains 32 days after a 12.0 gram dose was administered? The half life of iodine -131 is 8.0 days
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