Igcse Model Questions Vol1 2018 Chemistry Question 37

Practice objective / multiple choice question 37 from the 2018 Igcse Model Questions Vol1 Chemistry examination.

Igcse Model Questions Vol1 2018 Chemistry Objective / Multiple Choice Medium Difficulty
Question 37 IGCSE_MODEL_QUESTIONS_VOL1 • 2018 • CHEMISTRY • objective

A galvanic cell is set up as \(\text{Zn(s)}\mid\text{Zn}^{2+}(0.010\ \text{M})\,\|\,\text{Cu}^{2+}(0.10\ \text{M})\mid\text{Cu(s)}\) at \(25^{\circ}\text{C}\). Standard electrode potentials are \(E^{\circ}(\text{Zn}^{2+}/\text{Zn}) = -0.76\ \text{V}\) and \(E^{\circ}(\text{Cu}^{2+}/\text{Cu}) = +0.34\ \text{V}\).\n(a) Calculate the cell potential under the given concentrations using the Nernst equation.\n(b) If \(0.500\ \text{C}\) of charge passes through the cell, how many grams of copper are deposited on the copper electrode?

Answer Options

A. Cell potential = 0.98 V; mass of Cu deposited = 2.00×10⁻⁴ g
Correct Answer B. Cell potential = 1.13 V; mass of Cu deposited = 1.65×10⁻⁴ g
C. Cell potential = 1.20 V; mass of Cu deposited = 1.20×10⁻⁴ g
D. Cell potential = 1.05 V; mass of Cu deposited = 1.80×10⁻⁴ g
Correct Answer
B
Correct Option:
Cell potential = 1.13 V; mass of Cu deposited = 1.65×10⁻⁴ g

About This Question

This is Igcse Model Questions Vol1 2018 Chemistry Question 37. It is one of the objective questions from the 2018 Igcse Model Questions Vol1 Chemistry examination.

Difficulty level: Medium .

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