---
title: "An electroplating apparatus is used to reduce metal ions from aqueous solutions onto cathodes in two separate electrolytic cells. In Cell 1, a constant current of \\(2.0\\text{ A}\\) is passed through an aqueous solution of \\(\\text{AgNO}_3\\) for \\(15\\text{ min}\\), depositing \\(x\\text{ mol}\\) of \\(\\text{Ag}(s)\\). In Cell 2, a constant current of \\(3.0\\text{ A}\\) is passed through an aqueous solution of \\(\\text{Cr(NO}_3)_3\\) for \\(30\\text{ min}\\). Assuming that the cathode current efficiency is \\(100\\%\\) in both cells, what is the amount of \\(\\text{Cr}(s)\\) deposited in Cell 2 in terms of \\(x\\)?"
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url: "https://nerd-notes.com/ubq/120346/"
date_modified: "2026-08-23T04:23:15+00:00"
---

# An electroplating apparatus is used to reduce metal ions from aqueous solutions onto cathodes in two separate electrolytic cells. In Cell 1, a constant current of \(2.0\text{ A}\) is passed through an aqueous solution of \(\text{AgNO}_3\) for \(15\text{ min}\), depositing \(x\text{ mol}\) of \(\text{Ag}(s)\). In Cell 2, a constant current of \(3.0\text{ A}\) is passed through an aqueous solution of \(\text{Cr(NO}_3)_3\) for \(30\text{ min}\). Assuming that the cathode current efficiency is \(100\%\) in both cells, what is the amount of \(\text{Cr}(s)\) deposited in Cell 2 in terms of \(x\)?

An electroplating apparatus is used to reduce metal ions from aqueous solutions onto cathodes in two separate electrolytic cells. In Cell 1, a constant current of \(2.0\text{ A}\) is passed through an aqueous solution of \(\text{AgNO}_3\) for \(15\text{ min}\), depositing \(x\text{ mol}\) of \(\text{Ag}(s)\). In Cell 2, a constant current of \(3.0\text{ A}\) is passed through an aqueous solution of \(\text{Cr(NO}_3)_3\) for \(30\text{ min}\). Assuming that the cathode current efficiency is \(100\%\) in both cells, what is the amount of \(\text{Cr}(s)\) deposited in Cell 2 in terms of \(x\)?

- **A.** \(\dfrac{1}{3}x\)
- **B.** \(x\)
- **C.** \(3x\)
- **D.** \(9x\)

*The answer key and step-by-step explanation are available to logged-in users at https://nerd-notes.com/ubq/120346/*