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Do you experimental data substantiate the rule of thumb regarding the effect on the reaction rate of a 10-degree increase in reaction temperature? Briefly explain
A tank contains a mixture of 3.0 mol N2, 2.0 mol O2, and 1.0 mol CO2 at 25 degrees celsius and a total pressure of 10.0 atm. Calculate the partial pressure (in torr) of each gas in the mixture.C
An unknown solid compound is analyzed in the lab to determine its chemical formula. The following observations are recorded. When a small quantity of the solid is heated in the flame of a Bunsen burner, a bright orange flame is observed.
A famous foot race in California starts from the bottom of Death Valley (100 m below sea level) and finishes at the top of Mt. Whitney (4300 m above sea level). what percentage does the oxygen number density decrease between the start and the finis..
a fishing boat accidentally spills 9 barrels of diesel oil into the ocean. each barrel contains 42 gallons. if the oil
The reaction below might be a suitable coupled reaction reaction to provide the energy for which of the reaction ( a-e)
A mass of 1.50 g H2O is sealed in an evacuated 3.0-L flask and heated to 55 °C. What mass of liquid water remains in the flask when equilibrium is established? The equilibrium vapor pressure of water at 55 °C is 118 mm Hg.
The diameter of the cylinder is 0.5m. and the piston height is 1m. a.what is the mass of the weights on the cylinder? b.You heat the gas to 1000k. how high will the cylinder rise? c.How much work will the engine provide?
A 0.01 M solution of hyperchlorous acid , which is a monoprotic acid, has a pH of 6.5 at 67 degrees C. Determine the Ka value of this acid.
Calculate the standard cell potential (E) for the reaction X(s)+Y+(aq) -> X+(aq)+Y(s) if K = 5.33 x 10^-3. Express your answer to three significant figures and include the appropriate units.
Once the liquid has solidified, the system is in thermal equilibrium (no temperature change in the solid). What is the latent heat of fusion (kJ/kg) of the unknown liquid?
A person inhales air richer in O2 and exhales air richer in CO2 and water vapor. During each hour of sleep, a person exhales a total of 300. L of this CO2-enriched and H2O-enriched air. (a) If the partial pressures of CO2 and H2O in exhaled air ar..
Hydroxylamine, HONH2, readily forms salts such as hydroxylamine hydrochloride which are used as antioxidants in soaps. Hydroxylamine has Kb of 9.1 x 10^-9. What is the pH of a 0.025M HONH2 solution
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