EBK CHEMISTRY: PRINCIPLES AND REACTIONS
8th Edition
ISBN: 9780100547964
Author: Hurley
Publisher: YUZU
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Chapter 20, Problem 3QAP
Write a balanced equation to represent
(a) the roasting of nickel(II) sulfide to form nickel(II) oxide.
(b) the reduction of nickel(II) oxide by carbon monoxide.
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In one electrode: Pt, H2(1 atm) | H+(a=1), the interchange current density at 298K is 0.79 mA·cm-2. If the voltage difference of the interface is +5 mV. What will be the correct intensity at pH = 2?. Maximum transfer voltage and beta = 0.5.
In a Pt electrode, H2(1 atm) | H+(a=1), the interchange current density of an electrode is 0.79 mA cm-2. ¿Qué corriente flow across the electrode of área 5 cm2 when the difference in potential of the interface is +5 mV?.
If the current voltage is n = 0.14 V, indicate which of the 2 voltage
formulas of the ley of Tafel must be applied
i
a
a) == exp (1-B).
xp[(1 - ß³):
Fn
Fn
a
b) == exp B
RT
RT
Chapter 20 Solutions
EBK CHEMISTRY: PRINCIPLES AND REACTIONS
Ch. 20 - Write a balanced equation to represent the...Ch. 20 - Write a balanced equation to represent the...Ch. 20 - Write a balanced equation to represent (a) the...Ch. 20 - Prob. 4QAPCh. 20 - Prob. 5QAPCh. 20 - Prob. 6QAPCh. 20 - Prob. 7QAPCh. 20 - Prob. 8QAPCh. 20 - Prob. 9QAPCh. 20 - Zinc is produced by electrolytic refining. The...
Ch. 20 - Prob. 11QAPCh. 20 - Prob. 12QAPCh. 20 - Prob. 13QAPCh. 20 - Prob. 14QAPCh. 20 - Prob. 15QAPCh. 20 - Prob. 16QAPCh. 20 - To inflate a life raft with hydrogen to a volume...Ch. 20 - What mass of KO2 is required to remove 90.0% of...Ch. 20 - Prob. 19QAPCh. 20 - Prob. 20QAPCh. 20 - Prob. 21QAPCh. 20 - Prob. 22QAPCh. 20 - Balance the following redox equations. (a)...Ch. 20 - Balance the following redox equations. (a)...Ch. 20 - Prob. 25QAPCh. 20 - Prob. 26QAPCh. 20 - Prob. 27QAPCh. 20 - Using Table 17.1 (Chapter 17) calculate E° for (a)...Ch. 20 - Using Table 20.4, calculate, for the...Ch. 20 - Prob. 30QAPCh. 20 - Prob. 31QAPCh. 20 - Prob. 32QAPCh. 20 - Prob. 33QAPCh. 20 - The equilibrium constant for the reaction...Ch. 20 - Using data in Appendix 1, estimate the temperature...Ch. 20 - A 0.500-g sample of zinc-copper alloy was treated...Ch. 20 - Prob. 37QAPCh. 20 - Prob. 38QAPCh. 20 - Iron(II) can be oxidized to iron(III) by...Ch. 20 - Prob. 40QAPCh. 20 - Prob. 41QAPCh. 20 - Rust, which you can take to be Fe(OH)3, can be...Ch. 20 - Prob. 43QAPCh. 20 - Prob. 44QAPCh. 20 - Prob. 45QAP
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- If the current voltage is n = 0.14 V. Indicate which of the 2 formulas must be applied a) = a T = i exp[(1 - p) F Fn Fn b) i==exp B RTarrow_forwardTopic: Photochemistry and Photophysics of Supramoleculesarrow_forwardTwo cations that exchange an electron in an interface, the exchange density is worth 1.39 mA/cm2 and the current density is worth 15 mA/cm2 at 25°C. If the overvoltage is 0.14 V, calculate the reaction rate and symmetry factor. Data: R = 8,314 J mol-1 k-1: F = 96500 Carrow_forward
- With the help of the Tafel line, it is estimated that the interchange density of the VO2+/VO2+ system on the carbon paper has a value of 3 mA cm-2. Calculate a) the current density if the voltage has a value of 1.6 mV and the temperature is 25°C. b) the beta value of the anódico process if the Tafel pendulum is 0.6 V at 25°C. Data: R = 8.314 JK-1mol-1, y F = 96485 C mol-1.arrow_forwardApply the NANSTE law to the MnO4- + 8H+ + 5e- ⇄ Mn2+ + 4H2Oarrow_forwardIn the Nernst Law, how much is RT / F?arrow_forward
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