Consider the titration of 25.0 mL of 0.0100 M Sn²+ by 0.0500 M TI³* in 1M HCl using Pt and an SCE reference electrode to find the endpoint. Find E at the equivalence point. The titration reaction is: Sn²+ + Tl³+ → Sn*+ + Tl* When 25.00 mL of unknown were passed through a Jones reductor, molybdate ion (Mo0?-) was converted to Mo3+ according to the reaction Mo0?- + 8H* + 3e¯ → Mo3+ + 4H20. The filtrate required 16.43 mL of 0.01033 M KMN0, to reach the purple endpoint 3MN0, + 5M03+ + 4H* → 3MN²+ + 5 Mo03+ + 2H,0. A blank required 0.04 mL. Find the molarity in the unknown.

Consider the titration of 25.0 mL of 0.0100 M Sn²+ by 0.0500 M TI³* in 1M HCl using Pt and an SCE reference electrode to find the endpoint. Find E at the equivalence point. The titration reaction is: Sn²+ + Tl³+ → Sn+ + Tl When 25.00 mL of unknown were passed through a Jones reductor, molybdate ion (Mo0?-) was converted to Mo3+ according to the reaction Mo0?- + 8H* + 3e¯ → Mo3+ + 4H20. The filtrate required 16.43 mL of 0.01033 M KMN0, to reach the purple endpoint 3MN0, + 5M03+ + 4H* → 3MN²+ + 5 Mo03+ + 2H,0. A blank required 0.04 mL. Find the molarity in the unknown.

Principles of Instrumental Analysis

7th Edition

ISBN:9781305577213

Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Publisher:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

ChapterA1: Evaluation Of Analytical Data

Section: Chapter Questions

Problem A1.23QAP

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