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Illustrate an energy diagram for an endothermic reaction. Clearly label 1) each axis 2) the average energy of reactants 3) the average energy of products 4) the activation energy and 5) the energy absorbed by the reaction
Molecular solid can be pictured as the collection of independent harmonic oscillators. (a) Starting with the expression for the partition function derive an expression for the vibrational heat capacity
Which of the following compounds is expected to have the highest boiling point
A 0.484g sample of impure NH4Br is treated with 25.00 mL of 0.2050 M NaOH and heated to drive off NH3. The unreached NaOH in the reaction mixture after heating required 9.95 mL of 0.0525 M H2C2O4 to neutralize.
Calculate the concentration of the acid solution after all the metal has reacted.
a weak acid ha is found to ionize 17.8 when mixed at a concentration of 0.3 moll. what is the value of ka for this
Determine how many significant figures are there in the Fahrenheit result when 7.02C converted to Fahrenheit scale,?
In a first order decomposition in which the rate constant is 0.201 sec-1, how long will it take (in seconds) until 0.131 mol/L of the compound is left, if there was 0.566 mol/L at the start
you are going to complete several meteorological tests using a large weather balloon. you wish to check the temperature
If 10.7ml of 0.105 M NaOH ir required to reach the first equivalence point of a solution of citric acid (H3C6H5O7), how many milliliters of NaOH are required
Titanium(6.94x10^-19 J and silicon (7.77x10-^19 J) surfaces are irradiated with UV radiation with a wavelength of 245 nm. what is the wavelength of the electrons emitted by the titanium surface
A 67.9 g mixture of the compounds sodium sulfide and potassium bromide is 40.9 % by mass sodium sulfide. The compound sodium sulfide is 41.1 % by mass sulfur. Calculate the mass (g) of sodium in the mixture.
An 1.07 mol sample of carbon dioxide gas at a temperature of 8.00 oC is found to occupy a volume of 22.7 liters. The pressure of this gas sample is
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