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gizmo_the_mogwai [7]
3 years ago
7

Determine the number of Ni2+ ions involved in metalization (Ni plating) of an electrode for 30 sec in an electrolysis cell opera

ted at 0.020A at 78 % current efficiency? The Faraday constant, F = 96485 C/mol and Avogadro # NA = 6.023×1023. What will be the number of Ag+ ions if Ag is plated under the same experimental conditions instead of Ni2+?

Chemistry
1 answer:
dybincka [34]3 years ago
3 0

Answer:  The number of Ni2+ ions is 1.46 × 10^18 ions

The number of Ag+  ions is 2.92 × 10^18 ions

Explanation: Please see the attachments below

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4 years ago
Calculate the internal energy (in Joules) of a system that loses 134.8 J that is compressed with a pressure of 5.73 atm from 8.5
Nataly_w [17]

The change in the internal energy of the system is -4511.8 J.

<h3>What is the change in the internal energy?</h3>

We know that according to the first law of thermodynamics, energy can neither be created nor destroyed  but can be transformed from one form to the other.

Now we know that;

ΔE = q + w

ΔE = Change in internal energy

q = heat absorbed or evolved

w = work done

Now we have;

q = - 134.8 J (The system losses heat)

w = PdV

w =  5.73 (1.00 -  8.540)

w = -43.2 Latm or -4377 J

Then we have;

ΔE = - 134.8 J + (-4377 J)

ΔE = -4511.8 J

Learn more about internal energy:brainly.com/question/11278589

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Why is atomic number better than atomic mass for organizing the elements in the periodic table?
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Answer:

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