Neco Model Questions Vol1 2019 Chemistry Question 1

Practice objective / multiple choice question 1 from the 2019 Neco Model Questions Vol1 Chemistry examination.

Neco Model Questions Vol1 2019 Chemistry Objective / Multiple Choice Medium Difficulty
Question 1 NECO_MODEL_QUESTIONS_VOL1 • 2019 • CHEMISTRY • objective

A galvanic cell is constructed as follows: Zn(s) | Zn^{2+} (0.010 M) || Cu^{2+} (0.50 M) | Cu(s) at 25 °C. The standard reduction potentials are \(E^{\circ}_{\text{Zn}^{2+}/\text{Zn}} = -0.76\ \text{V}\) and \(E^{\circ}_{\text{Cu}^{2+}/\text{Cu}} = +0.34\ \text{V}\). (a) Calculate the cell potential under the given conditions using the Nernst equation. (b) If a charge of 0.250 C passes through the cell, how many grams of copper are deposited on the copper electrode? Provide your answer as "Ecell = ... V; mass Cu = ... g".

Answer Options

A. Ecell = 1.15 V; mass Cu = 2.10×10^{-4} g
B. Ecell = 0.95 V; mass Cu = 2.10×10^{-4} g
Correct Answer C. Ecell = 1.15 V; mass Cu = 1.65×10^{-4} g
D. Ecell = 0.85 V; mass Cu = 1.65×10^{-4} g
Correct Answer
C
Correct Option:
Ecell = 1.15 V; mass Cu = 1.65×10^{-4} g

About This Question

This is Neco Model Questions Vol1 2019 Chemistry Question 1. It is one of the objective questions from the 2019 Neco Model Questions Vol1 Chemistry examination.

Difficulty level: Medium .

Master the Exam!

You've seen a preview, but there are thousands more questions plus AI tutor to break down complex solutions.

Unlock Full Access Available for Android & Windows
Chat with Support