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Suppose that the reaction A---> products is exothermic and has an activation barrier of 75kJ/mol. Sketch an energy diagram showing the energy of the reaction as a function of the progress of the reaction. Draw a second energy curve showing the effect of a catalyst.
Calculate the amount of heat required to completely sublime 51.0 g of solid dry ice (CO_2) at its sublimation temperature. The heat of sublimation for carbon dioxide is 32.3 kJ/mol .
What is the molality of glycerol in a solution of 2.05 g of glycerol (C3H8O3) and 80.3 g of ethanol (C2H6O)
Compound E was heated with bromine and aqueous sodium hydroxide to give compound F (C7H9N). Compound F was treated with cold sodium nitrite and an excess of hydrochloric acid a colorless gas was evolved, and when the resulting liquid reaction mixt..
The solubility of oxygen in water is 5.00M when the partial pressure of oxygen is 1.00 atm. Calculate the solubility of oxygen in water in contact with air
If Dan is working in the lab and measures the mass of an iron rod to be 1.25 g and the accepted value from the instructor was given as 1.30 g, what was dan's percent error
Once the reaction is complete, the student collects 1.23g of aspirin. Determine the theoretical yield and percent yield of aspirin.
What is the formal charge on the singly bonded oxygens in the Lewis Structure for the carbonate ion
What volume will 135 g of butane occupy at 745 torr and 35 C?
A 60.0 g sample of an alloy was heated to 96.0 °C and then dropped into a beaker containing 87.0 g of water at 24.1 °C. The temperature of the water rose to a final 27.63 °C.
A flask contains 0.180 mol of liquid bromine, Br_2. Determine the number of bromine molecules present in the flask.
In a separate experiment using a very large reaction vessel with a movable piston, 6.00 moles of CO2 reacts completely with 3.00 moles of nitrogen gas according to the following equation at 25 C and with a constant external pressure of 2.00 atm
A sample of gas with an initial volume of 32.5 L at a pressure of 760 mmHg and a temperature of 315 K is compressed to a volume of 16.3 L and warmed to a temperature of 435 K
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