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Sulfur dioxide in the effluent gases from coal-burning electric power plants is one of the principal causes of acid rain. One method for reducing SO2 emissions involves partial reduction ofSO2 to H2S followed by catalytic conversion of the H2S and the remaining SO2 to elemental sulfur:2H2S (g)+ SO2 (g) to 3 S( s ) + 2 H2O( g )
Using the data in Appendix B in the textbook, calculate Delta G degree. Show that this reaction is spontaneous at 25 degree C.
Estimate the temperature at which the reaction becomes nonspontaneous. Why does this reaction become nonspontaneous at high temperatures?
A particular first-order reaction has a rate constant of 1.35 × 102 s-1 at 25°C. What is the magnitude of k at 75°C if Ea=85.6 kJ/mol
Write the chemical equation for all the reactions both SN1 and SN2 involving primary and secondary substrates b) Rank the primary halide in order of increasing reactivity toward SN2
A) Determine the [OH-] of a 0.16 M ammonia solution. B) Determine the pH of a 0.16 M ammonia solution. C) Determine the pOH of a 0.16 M ammonia solution.
Is each of the following salts acidic, basic or neutral in aqueous solution. Use appropriate equations to explain why for each please. a) NH4Cl b) NaClO4 c) NaNO2
The theoretical value can be computed from the atomic weights of the atoms involved. How
Complete the following table for aqueous solutions of potassium hydroxide. a. given: density (g/mL):1.05 molarity:1.13 find molality and mass percent of solute
Calculate the pH at the points in the titration of 40.00 mL of 0.425 M NH3 for the reaction below. NH3(aq) + HNO3 ? NH4+(aq) + NO3?(aq) For NH3, Kb = 1.8x10-5. Enter your answer with 2 decimal places. Enter scientific notation as 1.23E4
if 450 ml of some pbno32 solution is mixed with 600 ml of 3.70 x 10-2 m nacl solution what is the maximum concentration
A 5.0 ml sample of vinegar was titrated with 7.2 ml of 0.55 M NaOH. if the density of vinegar solution is 1.00g/ml, what is the mass percent of acetic acid present.
what steps are needed to prepare phenylacetylene from C6H5CH2CH2Br I chose the following reagents 1. H2SO4, 2. Br2, 3. NaNH2/excess (were correct) and simply require to draw the intermediate
write an essay that explains the energy changes that occur during a chemical reaction. when is energy absorbed and when
how many moles are there of the reducing agent. What is the molarity of the reducing agent? Oxidizing agent --> KMnO4 Reducing Agent --> Fe +2 Volume of Fe +2 = 25 mL Concentration of KMnO4 = 0.1290 M
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