9 pl NaHCO3+H3C6H5O7→ Na3C6H5O7 + H₂O + CO₂8. The following reaction between potassium permanganate(KMnO4) and manganese sulfate in water produces man-ganese dioxide, potassium sulfate, and sulfuric acid:KMnO4 + MnSO4+H₂O → MnO2 + K2SO4 + H₂SO4[For each compound, construct a vector that lists the numbersof atoms of potassium (K), manganese, oxygen, sulfur, andhydrogen.]R9DAR9OT 2MOITUJO29. [M] If possible, use exact arithmetic or rational format forcalculations in balancing the following chemical reaction:PbN6 + CrMn₂O8 → Pb3O4 + Cr2O3 + MnO₂ + NO10. [M] The chemical reaction below can be used in some indus-trial processes, such as the production of arsene (AsH3). Useexact arithmetic or rational format for calculations to balancethis equation.MnS + As₂ Cr10035 + H₂SO411. Find the general flow pattern of the network shown in thefigure. Assuming that the flows are all nonnegative, what isthe largest possible value for x3?20→ HMnO4 + AsH3 + CrS3012 + H₂O80XIAX3x2CBOVE JO12. a. Find the general traffic noBX4

Check the number of elements on both sides and if they are not balanced, then multiply by…

Answered: 9. [M] If possible, use exact…

9. [M] If possible, use exact arithmetic or rational format for calculations in balancing the following chemical reaction: PbN6+ CrMn2O8 → Pb3O4 + Cr₂O3 + MnO2 + NO

Physical Chemistry

2nd Edition

ISBN:9781133958437

Author:Ball, David W. (david Warren), BAER, Tomas

Publisher:Ball, David W. (david Warren), BAER, Tomas

Chapter22: Surfaces

Section: Chapter Questions

Problem 22.44E: Are the following processes examples of homogeneous or heterogeneous catalysis? a Hydrolysis of...

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The reaction SO2(g)+2H2S(g)⇌3S(s)+2H2O(g)SO2(g)+2H2S(g)⇌3S(s)+2H2O(g) is the basis of a suggested method for removal of SO2SO2, a pollutant that irritates airways causing coughing, from power-plant stack gases. The values below may be helpful when answering questions about the process. Substance ΔG∘fΔGf∘(kJ/mol)(kJ/mol) ΔH∘fΔHf∘(kJ/mol)(kJ/mol) H2O(g)H2O(g) −−228.6 −−241.8 H2O(l)H2O(l) −−237.1 −−285.8 SO2(g)SO2(g) −−300.4 −−296.9 SO3(g)SO3(g) −−370.4 −−395.2 H2S(g)H2S(g) −−33.01 −−20.17 S(s)S(s) 0 0 Assume that the partial pressure of sulfur dioxide, PSO2PSO2, is equal to the partial pressure of dihydrogen sulfide, PH2SPH2S, and therefore PSO2=PH2SPSO2=PH2S. If the vapor pressure of water is 24 torrtorr , calculate the equilibrium partial pressure of SO2SO2 (PSO2PSO2) in the system at 298 KK. Express the pressure in atmospheres to two significant figures. Kp= 8*10^15
The highest building in Montreal is the ‘1 square building’, with a height of 203m.The atmospheric pressure in the streets of Montreal is P1 = 9.9 x 104Pa.Suppose air density is constant : ρair= 1,2 kg/m3 and g = 9.8 m/s2. Suppose the rooftop temperature to be T = 298K, and the air composition is 100%N2 molecules. The collision cross-section of N2 molecules is 0.43 nm2.*f. Find the collision frequency. Is it in the order of magnitude that you wereexpecting?
A manometer was connected to a bulb containing nitrogen under slight pressure. The gas was allowed to escape through a small pinhole, and the time for the manometer reading to drop from 65.1 cm to 42.1 cm was 18.5 s. When the experiment was repeated using a fluorocarbon gas, the same fall took place in 82.3 s. Calculate the molar mass of the fluorocarbon.
The conversion of natural gas, which is mostly methane,into products that contain two or more carbon atoms, suchas ethane (C2H6), is a very important industrial chemicalprocess. In principle, methane can be converted into ethaneand hydrogen: 2 CH4(g)----->C2H6(g) + H2(g) In practice, this reaction is carried out in the presence ofoxygen: 2 CH4(g) + 12O2(g)---->C2H6(g) + H2O(g) (a) Calculate K for these reactionsat 25 °C and 500 °C. (b) Is the difference in ΔG° forthe two reactions due primarily to the enthalpy term (ΔH)or the entropy term 1-TΔS2? (c) Explain how the precedingreactions are an example of driving a nonspontaneousreaction, (d) The reaction of CH4 and O2 to form C2H6 and H2O must be carried out carefully to avoid a competingreaction. What is the most likely competing reaction?
The conversion of natural gas, which is mostly methane,into products that contain two or more carbon atoms, suchas ethane (C2H6), is a very important industrial chemicalprocess. In principle, methane can be converted into ethaneand hydrogen: 2 CH4(g)----->C2H6(g) + H2(g) In practice, this reaction is carried out in the presence ofoxygen: 2 CH4(g) + 12O2(g)---->C2H6(g) + H2O(g) (a) Calculate K for these reactionsat 25 °C and 500 °C. (b) Is the difference in ΔG° forthe two reactions due primarily to the enthalpy term (ΔH)or the entropy term 1-TΔS2? (c) Explain how the precedingreactions are an example of driving a nonspontaneousreaction, (d) The reaction of CH4 and O2 to form C2H6 and H2O must be carried out carefully to avoid a competingreaction. What is the most likely competing reaction? Cells use the hydrolysis of adenosine triphosphate (ATP)
A supersaturated solution of sucrose (C12H22O11) is made by dissolving sucrose in hot water and slowly letting the solution cool to room temperature. After a long time, the excess sucrose crystallizes out of the solution. Indicate whether each of the following statements is true or false: After the excess sucrose has crystallized out, the rate of sucrose molecules leaving the surface of the crystals to be hydrated by water is equal to the rate of sucrose molecules in water attaching to the surface of the crystals.
In an experiment, sulfuric acid reacted with different volumes of sodium thiosulfate in water. A yellow precipitate was formed during the reaction. A cross drawn at the base of each flask became gradually invisible due the formation of this yellow precipitate. The time taken for the cross to become invisible was recorded. A partial record of the experiment is shown. Experimental Record Flask Volume ofH2SO4 Volume ofSodium Thiosulfate Volume ofWater Time 1 5 mL 50 mL 0 mL 19 seconds 2 5 mL 40 mL 10 mL 3 5 mL 30 mL 20 mL 4 5 mL 20 mL 30 mL Based on your knowledge of factors that affect the rates of chemical reactions, predict the trend in the last column of the experimental record. Use complete sentences to explain the trend you predicted. You do not have to determine exact values for time; just describe the trend you would expect (increase or decrease) and why it occurs.
Ethylene (CH2CH2) is the starting point for a wide array of industrial chemical syntheses. For example, worldwide about 8.0x10^10 kg of polyethylene are made from ethylene each year, for use in everything from household plumbing to artificial joints. Natural sources of ethylene are entirely inadequate to meet world demand, so ethane (CH3CH3) from natural gas is "cracked" in refineries at high temperature in a kinetically complex reaction that produces ethylene gas and hydrogen gas. Suppose an engineer studying ethane cracking fills a 75.0 L reaction tank with 23.0 atm of ethane gas and raises the temperature to 750.°C. He believes Kp=6.0 at this temperature. Calculate the percent by mass of ethylene the engineer expects to find in the equilibrium gas mixture. Round your answer to 2 significant digits.
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When ln(Ksp) is plotted vs 1/T(K), the graph has a y-intercept of 44.17. Calculate dS in units of J/K.mol and report only the numerical answer in the box below.
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