Exam Chem Lab2007

Exam Chem Lab2007 - THE UNIVERSITY OF NEW SOUTH WALES...

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THE UNIVERSITY OF NEW SOUTH WALES NOVEMBER, 2007 CEIC2003 Chemical Engineering Laboratory I CEIC2012 Instrumental Analysis - Practical TIME ALLOWED: 2 hours TOTAL NUMBER OF QUESTIONS: 8 ALL QUESTIONS ARE OF EQUAL VALUE. ANSWER QUESTIONS 1-5 IN A SEPARATE BOOK. ANSWER QUESTIONS 6-7 IN A SEPARATE BOOK. ANSWER QUESTION 8 IN A SEPARATE BOOK. THIS PAPER MAY BE RETAINED BY THE CANDIDATE. ALL ANSWERS MUST BE WRITTEN IN INK. EXCEPT WHERE THEY ARE EXPRESSLY REQUIRED, PENCILS MAY BE USED ONLY FOR DRAWING, SKETCHING AND GRAPHICAL WORK. 1
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Question 1 (a) Describe three ways to detect systematic error in an analysis. (b) Explain how Solid-Phase Extraction (SPE) works in sample preparation. Question 2 (a) Briefly describe the relationship between absorbance and transmittance. Identify three factors that cause the Beer's law relationship to fail. (b) Briefly describe three types of instrumental error that are sources of uncertainty in transmittance measurement. Question
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Exam Chem Lab2007 - THE UNIVERSITY OF NEW SOUTH WALES...

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