Thank you! **Introduction to the Nernst Equation****Learning Goal:**To learn how to use the Nernst equation.The standard reduction potentials listed in any reference table are only valid at the common reference temperature of 25 °C and standard conditions of 1 M for solutions and 1 atm for gases. To calculate the cell potential at nonstandard conditions, one uses the Nernst equation:\[ E = E^\circ - \frac{2.303 \, RT}{nF} \log_{10} Q \]where \( E \) is the potential in volts, \( E^\circ \) is the standard potential at 25 °C in volts, \( R = 8.314 \, \text{J} / (\text{K} \cdot \text{mol}) \) is the gas constant, \( T \) is the temperature in kelvins, \( n \) is the number of moles of electrons transferred, \( F = 96{,}500 \, \text{C}/(\text{mol} \, e^-) \) is the Faraday constant, and \( Q \) is the reaction quotient.At the common reference temperature of 298 K, substituting each constant into the equation the result is:\[ E = E^\circ - \frac{0.0592 \, \text{V}}{n} \log_{10} Q \] **Part E****What is the cell potential for the reaction**\[ \text{Mg(s) + Fe}^{2+}(\text{aq}) \rightarrow \text{Mg}^{2+}(\text{aq}) + \text{Fe(s)} \]at \( 57 \, ^\circ \text{C} \) when \([ \text{Fe}^{2+} ] = 2.90 \, M\) and \([ \text{Mg}^{2+} ] = 0.210 \, M\).*Express your answer to three significant figures and include the appropriate units.*[View Available Hint(s)]\[ E = \text{Value} \, \text{Units} \][Submit]

Answered: Image /qna-images/answer/c9ffb854-7eda-404d-aab2-8f19d42dcbd1.jpg

Part E What is the cell potential for the reaction at 57 °C when [Fe2+] = 2.90 Mand [Mg2+] = 0.210 M. Express your answer to three significant figures and include the appropriate units. ►View Available Hint(s) E = μA Value Units Mg(s)+Fe2+ (aq)→Mg2+ (aq) + Fe(s) ?

Part E What is the cell potential for the reaction at 57 °C when [Fe2+] = 2.90 Mand [Mg2+] = 0.210 M. Express your answer to three significant figures and include the appropriate units. ►View Available Hint(s) E = μA Value Units Mg(s)+Fe2+ (aq)→Mg2+ (aq) + Fe(s) ?

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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All changes save 7. When two solutions are mixed, a color change occurs. The data tables show the time between mixing and the color change for two sets of conditions. For Condition One, the solution concentrations were constant and temperature varied. For Condition Two, the temperature was constant and concentrations varied. Condition One: Concentration Time for Temperature (°C) Sample Color to Change 1 10° 36 sec 22° 14 sec Condition Two: Temperature Time for Concentration Sample Color to % Change 1. 100% 15 sec 2. 50% 24 sec Which of these statements is true according to the data? O The reaction rate is greater at 22°C than at 10°C. O Reducing the temperature increases the rate of the reaction. The reaction is affected by changes in temperature not by changes in concentration. O Decreasing the concentration increases the reaction rate. PREVIOUS 17 of 25 NEXT SAVE & EXIT
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Weight percent tungsten 0 30 5060 70 80 3600 uLtt 90 100 3400 - 3422°C 3200 L 3000 2800 2665°C 2670°C 2600 C 2600 2580 C 99.8 54 57 66 68 73 2400 2365 C 2337 C 37 48 2200 - 2170'C 2110°C (W) 2092°C 2020°C 51 2000 1970 C 17 (BB) 18 29.5 1800 10 20 30 40 50 60 70 80 90 100 Atomic percent tungsten Answer the following questions with reference to the Boron-Tungsten binary phase diagram shown above. 1. What is the melting point of pure boron? 2. What is the melting point of pure tungsten? 3. At what composition and temperature does the lowest-temperature eutectic in this system occur? 4. At what composition and temperature does the highest-temperature eutectic in this system occur? 5. List all of the known intermetallic compounds in this system. Temperature (°C) B,W. Mad BW,
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Edit View History Bookmarks People Tab Window Help O Questi x L 2021-0 x M [EXTE! X Dashb x O Launc O Launcix S Class eto.mheducation.com/ext/map/index.html?_con%3con&external_browser=0&launchUrl=https%253A%252F%252 20 Problem Set Saved attempts left Check my work Enter your answer in the provided box. Find AG for the following reaction, at 25°C, using AH and S values. f NHẠCI(s) → NH3(g) + HCI(g) kJ Standard Thermodynamic Values at 298 K Substance or Ion AH (kJ/mol) (J/mol K) HCI(g) HCI(aq) NH3(g) • NH3(aq) NH,CI(s) -92.3 186.79 55.06 -167.46 -45.9 193 -80.83 110 -314.4 94.6 ( Prey 6 of 15
C:/Users/wilol/Downloads/3322-final-part%2011 100% 4 /5 NH3 Br O'Na* Br NaSH DMSO 4 +
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_engine.html?ClassID=D1746475745#3 Drie. 0.700 g of an impure FeCl3 sample are dissolved in water to create 50.0 mL of solution. It took 1.54 x 10-3 mol H2C204 to reach the equivalence point. 2FE3+ (aq) + H2C204(aq) CO2(g) + 2H*(aq) + 2FE2+(aq) -> How many moles of FeCl3 react? 1? [? ]x 10 mol FeCl3 Coefficient (green) Exponent (yellow) Enter