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If a certain reaction has a rate constant of 9.51x10-9 L mol -1 s-1 at 500K as well as a rate constant of 1.10z10-5 L mol -1 s-1 at 600K, Explain what is the value of Ea?
A voltaic cell utilizes the following reaction: 2Fe3+ + H2 --> 2Fe2+ + 2H+ what is the emf of this cell under standard conditions? what is the emf for this cell
What total volume of ozone measured at a pressure of 29.0mmHg and a temperature of 234k can be destroyed when all of the chlorine from 16.5g of CF3Cl goes through ten cycles of the above reactions?
A peice of gold (10.0-g, C of Au = 0.129 J/g-K) is heated to 100.0 degrees Celcius. A peice of copper (also 10.0-g C of Cu = 0.385 J/g-K) is chilled in an ice bath to 0 degrees Celcius.
Calculate the number of molecules in 37.0 mL of ethanol, CH3CH2OH. The density of ethanol is 0.789 g/mL.
A student tried to make a buffer of pH 4.0 using sodium acetate and acetic acid. The initial pH of the buffer solution was 3.9. How should the student adjust the pH to the desired value?
Wood and oxygen are two reagents required to keep a campfire burning. identify the limiting and excess reagent: a) The fire dwindles over time. b) A carbon dioxide fire extinguisher puts out the flame.
A 25.0-ml sample of potassium chloride solution was found to have a mass of 25.115 g. When the solution was heated to dryness, the mass of the solute residue was 0.252 g. Calculate the mass/mass percentage concentration and molar concentration.
The value of K_c or K_p for a stated chemical equation is equal to a constant at a given temperature. Also, and most importantly, if you want to make $25, add me on skype (kasparov586)
consider the adiabatic expansion of 0.500 mol of an ideal monatomicgas with cvm 32r. the initial state is described by
If the gas is at 24 degrees Celsius and 1.0 atm, what mass of helium is in the blimp?
oxygen gas is generated by the thermal decomposition of potassium perchlorate. the oxygen gas is captured by water
A 388 mL container holds 0.146 g of Ne and an unknown amount of Ar at 35°C and a total pressure of 640. mmHg. Calculate the moles of Ar present.
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