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1) The solubility product for barium sulfate is 1.10x10-10. Calculate ?G° in kJ/mol at 298 K. Report your answer with one decimal point.
2) The vapor pressure of water is the same as the equilibrium constant (Kp) for the following reaction. Report your answer with three decimal points.H2O (l) ? H2O (g) ?Ho = 40.7 kJ/moleAt 20oC, Kp has a value of 0.036 atm. Calculate Kp at 10oC. (R= 8.314 J/K)
3) Calculate the standard free energy change at 298K for the conversion of diamond to graphite and determine whether or not the reaction is spontaneous under standard conditions:C(diamond) ? C(graphite);?Hf°(diamond) = 1.895 kJ/mol; S°(diamond) = 2.337 J mol-1K-1; S°(graphite) = 5.740 J mol-1K-1.
A. 2.2 kJ; not spontaneousB. -1.9 kJ; spontaneousC. -2.9 kJ; spontaneousD. 1.9 kJ; not spontaneousE. 4.0 kJ; not spontaneous
Splitting patterns and integrations may be used more than once, or not at all, as needed. Likewise, some bins might remain blank. Note that peak heights are arbitrary and do not indicate proton integrations.
What is the difference in volume (in mL) between the water vapor and liquid water? (Assume the density of liquid water is 1.0 g/mL.) C. Why is it dangerous to heat a closed container of liquid to its boiling point?
Suppose the reaction Pb(s) + 2H^+(aq) ? Pb^2+(aq) + H2(g) is carried out at pH = 4.00 and at a hydrogen gas pressure of 1.00 atm. The concentration of lead(II) ions that causes this reaction to be at equilibrium is
Calculate the number of moles of hydrogen gas that can be produced by the reaction of excess water with 8.75 x 1021 atoms of barium.
Using your average value for Kc and the concentrations provided for the reactants, determine the absorbance expected when 16.00mL of Fe 3+ (aq) is reacted with 10.00 mL of SCN (aq).
What is the normal boiling point in of a solution prepared by dissolving 1.50g of aspirin (acetylsalicylic acid, ) in 75.00g of chloroform. The normal boiling point of chloroform is 61.7 degrees C , and for chloroform is 3.63 (degrees C*kg/mol).
A 1.585 L container of F2 at 750.0 mm Hg was connected to another evacuated container which had a volume of 1.988 L and separated by a valve. What was the final pressure in atmospheres if the valve was opened and the gas allowed to expand into the..
Draw the Lewis structure for the PO4-3 ion, indicating any resonance forms. On the basis of electron configurations, predict the formula of the Type I ionic compound formed from the elements Z=49 and Z=51.
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The solubility product constant for Cu(IO3)2 is 1.44 x 10-7. What volume of 0.0520 M S2O32- would be required to titrate a 20.00 mL sample of a saturated solution of Cu(IO3)2?
At 105 °C, the reaction 2NO2(g) ? N2O4(g) has Kp = 0.054. What is the value of Kc at this temperature?
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