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A gas expands and does P-V work on the surroundings equal to 321 J. At the same time, it absorbs 177 J of heat from the surroundings. Calculate the change in energy of the gas.
The solution to Equilibrium constant, A certain gas mixture held at 395C has the following initial partial pressures: P(Cl2) = 351.4 torr; P(CO) = 342.0 torr and P(COCl2) = 0.
What mass of calcium can be produced by this process if a current of 7300A is applied for 46h ? Assume that the electrolytic cell is 75% efficient.
How many mL of 0.525M calcium chloride are needed to obtain 5.00x10 22 chloride ions.
A balloon was filled to a volume of 2.50 L when the temperature was rm 30.0 C. What would the volume become if the temperature dropped to rm 11.0 0C.
What volume will 1.56 liters of a gas at 27°C and 745 mmHg of pressure occupy at 100°C and 700 mmHg of pressure?
Calculate deltaS(Jmol^-1K^-1) for oxalic acid and delta S (Jmol^-1K^-1) for the combustion of one mole of oxalic acid.
The activation energy for a particular reaction is 95 kJ/mol. By what factor will the rate constant increase when the temperature is increased from 50 oC to 62 oC?
A gas has a volume of 10 L at 0 degrees C. What is the final temperature of the gas in C if its volume increases to 27 L? Assume that amount of the gas and its pressure remain unchanged.
an irregular shape of metal has a mass of 54.6 grams and displaces 2.83 cm^3 of water when dropped into a graduated cylinder filled with water. What is the identity of the pure metal?
Suppose you want to produce 1L of 3.50M aqueous solution of H2SO4. How many grams of solute are needed to make this solution.
"Alpha" iron metal crystallizes with the body-centered cubic unit cell. If the unit cell is 287 pm on each side, what is the density of alpha iron?
Determine the barometric pressure of water If a mercury (Hg)barometer reads 755 mmHg,?Express your answer in cm?
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