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A certain reaction has an equilibrium constant of 300 at 25 degrees celsius and 309 at 35 degrees celsius. What is deltaH^0 per mole for this reaction?
Which salt is most soluble in water? chromium (III) nitrate, silver iodide, barium phosphate, or calcium carbonate.
Calculate the ratio of the hydronium ion in acid rain to that in normal rain.
The oxidation of HSO3(-) by O2 in aqueous solution is a reaction of importance to the processes of acid rain formation and flue gas desulfurization.
Pretend that an electron performs 1D motion in the field of the proton so that it's wavefunction is psi(x)=cos(x/a), where a=0.5 Angstrom.
15g of steam at 373 K is added to 250g of H2O at 298 K at constant pressure of 1 bar. Is the final state of the system steam or liquid water? Calculate changes in entropy for the process.
Creat a spread sheet or matlab file with the following functionality: a/ The utility shoud use th P(in MPa) and T(in K) to calculate the ideal gas molar volume (in cm3/mol) at a reference state and two other states labeled ‘state1' and ‘state2'.
How do you draw this figure with dashed and solid wedges on the chirality centers (asymmetric carbons)
a gas expand and does P-V work on the surroundings equal to 294 J, at the same time , it absorbs 196J of heat from the surroundings. what is the change in energy of the system
The solubility of a gas in H2O at a temperature of 25 °C and a pressure of 1.2 atm is 0.042 M. What will the solubility of the same gas be in H2O at the same temperature at 3.4 atm.
Write the net ionic equation to show the formation of a precipitate (insoluble salt) when the following solutions are mixed. Write noreaction if no insoluble salt forms KCl(aq)+Pb(NO3)2(aq)
What is the change in internal energy (in J) of a system that absorbs 0.588 kJ of heat from its surroundings and has 0.219 kcal of work done on it?
The rate of an enzyme-catalyzed reaction usually increases with temperature, but then decreases after reaching the "optimal temperature."
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