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Write down the secular determinant for the allyl radical, Ch2=CH-Ch2, and estimate the pi-binding energy.
Calculate the mass of methane that must be burned to provide enough heat to convert 151.0 g of water at 43.0°C into steam at 124.0°C.
Five potential structures belonging to point groups Oh,D3h,D6h,D2h and D3d. Sketch geometries that are consistent with the possible point groups?
A 35.0ml sample gas is enclosed is in a gas tight syringe at 22 degress celcius. If the syringe is immersed in an ice bath a 0 degress celcius, what is the new gas volume.
What is the Lewis structure, VSEPR type, molecular geometry, and bond angle for each of the following: NaClO2, KICl4,
The titration is monitored with a potentiometer using a SCE reference electrode (Eref= 0.241V). the solution is buffered at ph=4.00.
what amount of heat would need to be added to 5.0 x 103 g of water to change its temperature from 21c to 84c?
The Cu is added to the calorimeter, and after a time the contents of the cup reach a constant temperature of 30.2 *C. Determine the amount of heat, in Joules, lost by the copper block
A sample of H2SO4 contains 1.11 grams of H (1.01 g/mol). How many moles of H2SO4 (98.02 g/mol) are present?
What is the molar mass of a nonelectrolyte compound if 3.42 grams of the compound dissolved in 41.8 grams benzene begins to freeze
Consider the steel tank whose volume is 42.0 L and which contains oxygen gas at a pressure of 18,000 kPa at 23° C. What mass of oxygen does the tank contain?
Calculate the mass of TRIS to use when it is mixed with 100 mL of 0.50 M HCl to prepare 1.00 L of buffer of pH=7.40. Also calculate the total concentration of the buffer.
A fuel gas containing 90% methane (CH4), 5% acetylene(C2H2) and 5% butane gas(C4H10) by volume is fed to a furnace in which it is completely burned with 10% excess air. The fuel gas flow rate is 1000 m^3/h at 15 degrees Celcius and 250 kPa.
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