- a)
Interpretation: The equilibrium constant is calculated and the reason for the
Concept Introduction:
Equilibrium constant: The equilibrium constant of a
Gibb’s free energy: The Gibb’s free energy also termed as the available energy; is the
To Identify: The equilibrium constant is calculated
- b)
Interpretation: The equilibrium constant is calculated and the reason for the
Concept Introduction:
Equilibrium constant: The equilibrium constant of a chemical reaction is the value of its reaction quotient at chemical equilibrium.
Gibb’s free energy: The Gibb’s free energy also termed as the available energy; is the thermodynamic potential that is minimized when a system reaches chemical equilibrium at constant and temperature.
To explain the reason for insoluble
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Chemistry: Atoms First V1
- The following data were collected for the reaction, H2(g) + L(g) ** - HI(g), at equilibrium at 25°C: [HJ = 0.10 mol L-1, [IJ = 0.20 mol L"\ [HI] = 4.0 mol L’1 Calculate the equilibrium constant for the reaction at this temperature.arrow_forwardAn aqueous solution of an unknown salt of vanadium is electrolyzed by a current of 2.50 amps for 1.90 hours. The electroplating is carried out with an efficiency of 95.0%, resulting in a deposit of 2.850 g of vanadium. a How many faradays are required to deposit the vanadium? b What is the charge on the vanadium ions (based on your calculations)?arrow_forwardThe thermite reaction is 2Al(s) + Fe2O3(s) Al2O3(s) + 2Fe(s) (a) Calculate G for this reaction. (b) Calculate Keq for this reaction. Assume T = 298 K. You may have to do some mathematical manipulations to get your final numerical answer.arrow_forward
- Chromium(VI) forms two different oxyanions, the orange dichromate ion, Cr2O72 , and the yellow chromate ion, CrO42 . (See the following photos.) The equilibrium reaction between the two ions is Cr2O72(aq)+H2O(l)2CrO42(aq)+2H+(aq) Explain why orange dichromate solutions turn yellow when sodium hydroxide is added.arrow_forwardAnswer the following questions by referring to standard electrode potentials at 25C. a Will oxygen, O2, oxidize iron(II) ion in solution under standard conditions? b Will copper metal reduce 1.0 M Ni2(aq) to metallic nickel?arrow_forwarda Calculate K1, at 25C for phosphoric acid: H3PO4(aq)H+(aq)+H2PO4(aq) b Which thermodynamic factor is the most significant in accounting for the fact that phosphoric acid is a weak acid? Why ?arrow_forward
- 738 Chapter 17 Electrochemistry 17.28 Consider the following galvanic cells: (1) Cu(s)|Cu²*(1 M)||Fe³*(1 M), Fe²+(1 M)| Pt(s) (2) Cu(s)|Cu²*(1 M)||Fe³*(1 M), Fe²+(5 M) |Pt(s) (3) Cu(s)|Cu²+(0.1 M)||Fe³+(0.1 M), Fe²+(0.1 M)|Pt(s) (a) Write a balanced equation for each cell reaction. (b) Sketch each cell. Label the anode and cathode, and indicate the direction of electron and ion flow. (c) Which of the three cells has the largest cell potential? Which has the smallest cell potential? Explain.arrow_forwardThe equilibrium constant, Kp, for the following reaction is 0.497 at 500 K. Calculate Ke for this reaction at this temperature. C PC15 (g) → PC13(g) + Cl₂ (9) Kc = ||arrow_forwardThe equilibrium constant for the reaction Ni(s) + 4CO(g) <--> Ni(CO)4(g) is 5.0x104 at 25ºC. What is the equilibrium constant for the reaction 2Ni(CO)4(g) <--> 2 Ni(s) + 8 CO(g)?arrow_forward
- In a blast furnace, carbon monoxide (CO) is used to reduce ferric oxide (Fe2O3) to metallic iron, with carbon dioxide as a by-product. The equilibrium constant Kc for the redox reaction is 19.9 at 1000 K. If the equilibrium pressure of CO2 is 2.4 atm, how much pressure is exerted by CO? Fe₂O3 (s)+3CO(g) ⇌ 2Fe(s)+3CO2 (g)arrow_forwardWhat is the correct equilibrium constant expression for the following reaction? MgCO3(s) ↔ MgO(s) + CO2(g)arrow_forwardConsider the following reaction at 100.0 °C: Al(s) + NaOH(aq) + H20(l) ⇄ Na[Al(OH)4](aq) + H2(g) A) Write a balanced equilibrium quotient (Qc) for the following reaction. B) If the pressure of this reaction is increased, which direction will the equilibrium shift? Why?arrow_forward
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