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One mole of an ideal gas (Cv=3/2R) is heated at (a)constant pressure and (b) constant volume from 298Kto 353K. Calculate delta_S for both cases.
Explain how the carbonate system in natural waters provides buffering capacity
A gaseous mixture of O2 and Kr has a density of 1.184 g/L at 385 torr and 300. K. What is the mole percent O2 in the mixture?
which the Estandard cell potential is +.90 given that the Estandardreduction potential for sulfite is -.57V, calculate Estandard reduction for X.
It is estimated that the Earth's ruminants (cattle, sheep, etc.) produce 73 million metric tons of CH4 each year. In this amount of CH4 there would be................ million metric tons of carbon
If the mass of the metal cylinder pictured below is 18.71 g, calculate the density of the cylinder.
How many grams of CH4 is needed to produce 49.0 g CHCl3? CH4(g) + 3 Cl2(g)-> CHCl3(g) + 3 HCl(g)
Calculate the mass of ethylene glycol, C2H6O2 , that must be added to 1.000 kg of ethanol, C2H5OH, to reduce its vapor pressure by 13.2 torr at 35°C. The vapour pressure of pure ethanol at 35°C is 1.00 x 10 -2 torr.
Napthalene has a log Kow of 3.33. Estimate its soil-water partition coefficient normalized to organic carbon.
The electron in the n = 5 level of a hydrogen atom emits a photon with a wavelength of 1280 nm. To what energy level does the electron move?
Calculate the molar concentration of H+ ion of a 1.86×10-1 M solution of the weak acid HClO (make an approximate calculation assuming that initial concentration is equal to the equilibrium
Acid rain over the Great Lakes has a pH of about 4.5. Calculate the [H_3O^+] of this rain.
Explain the difference between equivalence point and end point... Explain how the pH at the equivalence point varies as the strength of the acid increases.
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