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Fe(s) + 3/2O2(g) + 3/2H2(g) --> Fe(OH)3(s) at constant 25 degrees C and 1atm deltaH for Fe(OH)3(s) are -824.25 kJ/mol S for Fe(s), O2(g), H2(g) and Fe(OH)3(s) are 27, 130.6, 205.0 and 107 J/K mol, respectively. A. Determine the enthalpy change deltaH for the reaction at 298 K B. Determine deltaS surr for the reaction C. Determine deltaS sys for the reaction D. Determine deltaG for this reaction. Will this reaction be spontaneous?
Based on the sign of E°cell, classify these reactions as spontaneous or nonspontaneous as written. Assume standard conditions. Al3+(aq) + 3Na(s) ---->Al(s) +3Na+(aq) 3Fe2+(aq)+2Cr(s)---->3Fe(s)+2Cr3+(aq) Zn2+(aq) + Sn(s)---->Zn(s) + Sn2+(aq)
Paradichlorobenzene, C6H4Cl2 is a component of mothballs. A solution of 2.00 g in 22.5 g of cyclohexane boils at 82.39 C . The boiling point of pure cyclohexane is 80.70 C. Calculate Kb for cyclohexane. Express the constant numerically in degrees C..
The acidic constituent in vinegar is acetic acid. A 10.0-mL sample of a certain vinegar contains 500. mg of acetic acid. What is this mass of acetic acid expressed in micrograms?
The "roasting" of 48.7 g of ZnS at constant pressure gives off 220. kJ of heat. Calculate the DH for this reaction. 2ZnS(s) + 3O2(g) ® 2ZnO(s) + 2SO2(g)
what is the pressure of a container that has 7 atm pressure coming from o2 2 atm of pressure coming from n2 3 atm of
Some water was added to the initial reaction mixture in the procedure you performed. a. How might the yield of 1-bromobutane be affected if the water were not added, and what product(s) would be favored
Based on the structure and boiling point(176-177C) of Eucalytol. what aspects of this molecule allow it to separate from hexane? And which of the following temperature option of is best for separating eucalytus oil and why?
The following isotopic cluster was observed in a mass-spectrum of a parent peak of a halogenated compound:
Two different proteins X and Y are dissolved in aqueous solution at 37 C. The proteins bind in a 1:1 ratio to form XY. A solution that is initially 1.00 mM in each protein is allowed to reach equilibrium. At equilibrium, 0.18 mM of free X and 0.18..
a 36.4 l volume of methane gas is heated from 15 degrees c to 98 degrees c at constant pressure. what is the final
consider the following reactioncacl2 s rarr ca2 aq 2 cl- aq deltaho -81.5 kja 38.3 g sample of cacl2 mw 110.98 gmol
explain why this series of reaction will produce the 3,5-dibromotoluene and direct bromination of toluene produces the 2,4-dibromotoluene.
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