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SIZIF [17.4K]
3 years ago
5

En la electrólisis del Cloruro de plomo se han depositado 2.6 gramos del metal en 20 minutos el peso atómico del plomo es 206 ca

lculo la intensidad de la corriente eléctrica empleada AYUDENNNNN PLISSSS es para hoy!!!!!
Chemistry
1 answer:
mart [117]3 years ago
6 0

Answer:

2.01 A

Explanation:

Para esta pregunta debemos empezar por la semi-reaccion del plomo:

Pb^+^2~_(_a_q_)~+~2e^-~->~Pb_(_s_)

Se intercambian dos electrones en la semi-reacción del plomo. Si tenemos en cuenta la ecuación:

n=\frac{I*t}{z*F}

Donde:

<u>n= Moles depositados </u>

<u>I= Intensidad de corriente (en Amperios)</u>

<u>z= Numero de electrones intercambiados</u>

<u>F= Constante de faraday = 96484 C/mol</u>

<u>t=tiempo (en segundos)</u>

Que conocemos de esta ecuación?

<u>Los moles (se pueden calcular a partir de la masa atómica del plomo, 207.2 g/mol)</u>

2.6~g~Pb\frac{1~mol~Pb}{207.2~g~Pb}=0.0125~mol~Pb

<u>El tiempo (hay que convertirlo a segundos):</u>

20~min\frac{60~s}{1~min}=1200~s

<u>Z (Numero de electrones)</u>

De acuerdo a la semi-reacción son intercambiados 2 electrones.

<u>Por lo tanto podemos resolver para "I":</u>

I=\frac{n*z*F}{t}=\frac{0.0125~mol*2*96484\frac{C}{mol}}{1200~s}

I~=~2.01~\frac{C}{s}=2.01~A

Espero que sea de ayuda!

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