A carbonate fusion was needed to free the Bi from a 0.6400-g sample containing the mineral eulytite (2Bi2O3. 3SiO2). The fused mass was dissolved in 25.00 mL dilute acid, following which the Bi3+was titrated with 27.00mL of 0.03400M NaH2P04. The reaction is Bi3++ H2PO4-BiPO4(s) + 2H+ Identify: (a) possible chemical indicator for this analysis (b) Calculate the weight percent purity of eulytite (FW=1112.17g/mol) in the sample.

A carbonate fusion was needed to free the Bi from a 0.6400-g sample containing the mineral eulytite (2Bi2O3. 3SiO2). The fused mass was dissolved in 25.00 mL dilute acid, following which the Bi3+was titrated with 27.00mL of 0.03400M NaH2P04. The reaction is Bi3++ H2PO4-BiPO4(s) + 2H+ Identify: (a) possible chemical indicator for this analysis (b) Calculate the weight percent purity of eulytite (FW=1112.17g/mol) in the sample.

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter17: Complexation And Precipitation Reactions And Titrations

Section: Chapter Questions

Problem 17.17QAP

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