Sources of Error Determine the relationship between the observed/apparent value (EX) VERSUS that of the true value (ET) for the quantity being sought by writing either <, >, or = on the space provided

Sources of Error Determine the relationship between the observed/apparent value (EX) VERSUS that of the true value (ET) for the quantity being sought by writing either <, >, or = on the space provided

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter20: Applications Of Oxidation/reduction Titrations

Section: Chapter Questions

Problem 20.26QAP

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Sources of Error

Determine the relationship between the observed/apparent value (E_X) VERSUS that of the true value (E_T) for the quantity being sought by writing either <, >, or = on the space provided

TOPIC: Measured mass of the precipitate

Question 4

Overignition which causes the conversion of BaSO₄ precipitate to BaO. E_X ___ E_T

Question 5

Precipitate was not washed thoroughly. E_x ___ E_T

TOPIC: Standardization of Titrant

Question 6

Adding insufficient amount of titrant to reach acceptable endpoint color: E_X ___ E_T

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Sources of Error Determine the relationship between the observed/apparent value (EX) VERSUS that of the true value (ET) for the quantity being sought by writing either <, >, or = on the space provided. TOPIC: Measured mass of the precipitate 1. Overignition which causes the conversion of BaSO4 precipitate to BaO. EX _____ ET2. Precipitate was not washed thoroughly. Ex _____ ET TOPIC: Standardization of Titrant 3.Distilled water was not equilibrated to room temperature before the preparation of NaOH titrant. EX _______ ET
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