The electrochemical cell described by the balanced chemical
reaction has a standard cell potential of -0.2 V. Calculate the
equilibrium constant (Kc) for the reaction at 298 K.
Round your answer to 3 significant figures.
H2SO3(aq) + H2O(l) →
H2(g) + SO42-(aq) +
2H+(aq)
The electrochemical cell described by the cell notation has a
standard cell potential of -0.10 V. Calculate the value (kJ) for
the ΔG˚ of the cell. Round your answer to 3 significant
figures.
Pt(s) l Cr3+(aq),
Cr2O72-(aq), H+(aq) ll
H+(aq) l O2(g) l H2O(l) l
Pt(s)
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The electrochemical cell described by the balanced chemical reaction has a standard cell potential of -0.2...
Electrochemistry - Equilibrium 1. The electrochemical cell described by the balanced chemical equation has a standard emf (electromotive force) of -0.08 V. Calculate the value (J) for the Wmax that the cell can do under standard conditions. Round your answer to 3 significant figures. St. Red. Pot. (V) Faraday's Constant Hg2+/Hg +0.85 F = 96485 C Fe3+/Fe2+ +0.77 2Fe3+(aq) + Hg(l) → 2Fe2+(aq) + Hg2+(aq) 2. The voltaic cell described by the balanced chemical equation has a standard emf of...
The electrochemical cell described by the balanced chemical equation has a standard emf (electromotive force) of -0.29 V. Calculate the Wmax (kJ) the cell has done if 31.933 g of H+(aq) (Molar Mass - 1.008 g/mol) forms. Round your answer to 3 significant figures. 2IO3-(aq) + 2Mn2+(aq) + 2H2O(l) → I2(s) + 2MnO4-(aq) + 4H+(aq)
Using the Nernst equation, calculate the cell potential for the following reaction (T=298 K): Cr2O72- (aq) + 14 H+ (aq) 6 I- (aq) → 2 Cr3+ (aq) + 3 I2 (s) + 7 H2O (l) given that Cr2O72- = 1.7 M H+ = 1 M I- = 1 M Cr3+ = 0.002 M
A. What is the calculated value of the cell potential at 298K for an electrochemical cell with the following reaction, when the Cl2 pressure is 7.45×10-4 atm, the Cl- concentration is 1.21M, and the Cr3+ concentration is 1.37M ? 3Cl2(g) + 2Cr(s)6Cl-(aq) + 2Cr3+(aq) Answer: _____ V The cell reaction as written above is spontaneous for the concentrations given: ____ (true/false) B. What is the calculated value of the cell potential at 298K for an electrochemical cell with the following...
The cell potential of the following electrochemical cell depends on the gold concentration in the cathode half-cell: Pt(s) | H2(g,1.0bar) | H+(aq,1.0mol L−1) | Au3+(aq,?mol L−1) | Au(s) What is the concentration of Au3+ in the solution if Ecell is 1.22 V ? Express your answer using two significant figures.
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What is the calculated value of the cell potential at 298K for an electrochemical cell with the following reaction, when the F2 pressure is 3.62x10* atm, the F concentration is 1.18M, and the Cr3+concentration is 1.29M? 3F2(g) +2Cr(sF(aq) + 2Cr (aq) Answer:V The cell reaction as written above is spontaneous for the concentrations given: atm, What is the calculated value of the cell potential at 298K for an electrochemical cell with the following reaction, when the H2 pressure is 6.80x10...
1) Balance the following reaction under acidic conditions and calculate the cell potential in (V) at 298 K generated by the cell. Report your answer to the hundredths place. Cr2O72-(aq) + I-(aq) → Cr3+(aq) + I2(s) [Cr2O72-] = 2.0 M, [H+] = 1.0 M, [I-] = 1.0 M, [Cr3+] = 1.0 × 10-5 M 2) What is the value of n for the following reaction? Enter the whole number. 3Ni+(aq) + Cr(OH)3(s) + 5OH-(aq) → 3Ni(s) + CrO42-(aq) + 4H2O(l)
20;. The cell potential of the following electrochemical cell depends on the gold concentration in the cathode half-cell: Pt(s) | H2(g,1atm) | H+(aq,1.0M) | Au3+(aq,?M) | Au(s). What is the concentration of Au3+ in the solution if Ecell is 1.22 V ? Express your answer using two significant figures. [Au3+] = ______ M
The cell potential of the following electrochemical cell depends on the gold concentration in the cathode half-cell: Pt(s)|H2(g,1atm)|H+(aq,1.0M)|Au3+(aq,?M)|Au(s). What is the concentration of Au3+ in the solution if Ecell is 1.257 V ? Express your answer using three significant figures and in fM (f = femto = 10-15).