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Calculate the amount of PV work done. c2h4(g)+h2(g)-->c2h6(g) Express your answer using two significant figures. The addition of H2 to C=C double bonds is an important reaction used in the preparation of margarine from vegetable oils. If 36 mL of H2 and 36 mL of ethylene C2H4 are allowed to react at 1.6 atm , the product ethane C2H6 has a volume of 36mL.
What is the expected freezing point of a 0.50 m solution of Li2SO4 in water? Kf for water is 1.86°C/m.
A solution containing a mixture of metal cations was treated with dilute HCl and a precipitate formed. The solution was filtered and H2S was bubbled through the acidic solution.
the osmotic pressure of this solution was 0.00222 atm at 25 C. calculate the molar mass of hemoglobin, which is a molecular compound and a nonelectrolyte.
It is assumed that the relative standarddeviation of the method is sr ? s = 4 ppt forcarbon and 6 ppt for hydrogen. The means of the reported resultsare 68.5% C and 4.88% H. At the 95% confidence level, is there anyindication of systematic error i..
Use a table of standard thermodynamic values to predict the standard cell potential at 81 C: Cu(s)|CuSO4||AgNO3|Ag(s) Assume that the values of delta H and delta S are independent of temperature.
A helium-filled weather balloon has a volume of 815 L at 22 oC and 752 mmHg. It is released and rises to an altitude of 7.16 km, where the pressure is 364 mm Hg and the temperature is -25oC
A 21.15 g piece of iron and a 25.05 g piece of gold at 100.0 degreesC were dropped into a 720.0 mL of water at 18.45 degreesC.
calculate the number of microstates, W, that have this energy. Make sketches of these microstates. Calculate the corresponding entropy for each state.
The decomposition of carbon disulfide, CS2 to form carbon monosulfide, CS and sulfur is first order with k = 2.8 x 10^-7 / second at 1000 degrees C. CS2 => CS + S determine how many days would be needed before a 1.00 gram sample of CS2 had decompo..
The rate of a reaction increases with increasing concentrations of reactants because you have more collisions occurring in a given time period. The rate of a chemical reaction is inversely proportional to the temperature.
a turbine operates by the impact of a high velocity jet of steam against the turbine blades. The steam leaves the turbine at a lower velocity. For the turbine depicted, steam from a high pressure nozzle enters the air and strikes the blades of a t..
given that the length of the edge of a unit cell is 383 pm, determine the density of iridium in g/cm3.
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