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Consider one mole of a monatomic ideal gas at 300 K that undergoes a free expansion from a volume of 1 m^3 to 10 m^3.
a) How much does the chemical potential of each molecule in a gas change?
b) Multiply the above result by NA to obtain the chemical potential change in molar units.
c) How much reversible work would be required to return the gas to its original volume (by following a reversible isothermal path)?
Compute delta Hf for CaC2 : CaC2 + 2H2O-->Ca(OH)2 +C2H2 From the given enthalpy of reaction data as water(H2O) =(2*-285.83),calcium hydroxide Ca(OH)2=(-986.2) , AcetyleneC2H2 =(226.77)?
Sodium carbonate was used to precipitate silver from a solution. 6.00 grams of silver carbonate were recovered from 1.500L of solution. What was the concentration in ppm of silver ions in the original solution?
To make a 325 mL solution of 0.150 M NaCl, how many grams of NaCl need to be weighed out?
In photosynthesis, plants from glucose (C6H12O6) and oxygen from carbon dioxide and water
Why was anhydrous, not wet, diethyl either used in the prepeatation and reaction of the Grignard reagent?
100 mL of 0.200 M HCl is titrated with 0.250 M NaOH .What is the pH of the solution at the equivalence point?Express the pH numerically.
A sample of CO2 g in a piston at 7.5 atm and 1090. L is allowed to come to equilibrium against a constant external pressure of 8.3 atm at constant temperature. Calculate the work observed for the volume change in the piston (in kJ).
the vapor pressure of water at 90.0 is 526.8mm hg what mass of ethlene glycol (mw 62.7gmol) when added to 1.50 kg of warer will lower the vapor ptessure
a sample of helium gas initially at 37 degrees celsius, 785 torr and 2.00L was heated to 58.0 degrees celcius while the volume expanded to 3.24L. What is the final pressure in atm.
Calculate the energy in joules and calories required to heat 5.25 g of water from 5.5 oC to 64.8 oC.
Solubility Constant, Ksp of Reactant, The chemical reaction representing the soluability of AGBr is: AgBr (right and left arrow) Ag^+ +Br^-
acetic acid has a Ka value of 1.8x10^-5. How many grams of NaC2H3O2 would have to be added to 100 ml of .1 M HC2H3O2 to prepare a buffer with a pH of 4.5?
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