Analyte in an unknown gave a signal of 9.3 mV.  When 100 mL of 0.211 M standard was added to 100.0 mL of unknown, the signal increased to 16.7 mV.  Find the concentration of the original unknown solution.

Principles of Instrumental Analysis
7th Edition
ISBN:9781305577213
Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch
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Chapter1: Introduction
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Analyte in an unknown gave a signal of 9.3 mV.  When 100 mL of 0.211 M standard was added to 100.0 mL of unknown, the signal increased to 16.7 mV.  Find the concentration of the original unknown solution.

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