[화학공학실험2] LAB7 Liquid-liquid extraction 결과레포트(영문)

소개글

화공실2 레포트 작성하는데 매우 많은 시간이 소요됩니다.
1900원으로 당신의 시간을 지키시기 바랍니다.
기말고사 2문제 풀고 에이쁠 받았습니다.
레포트로 점수를 다 땄습니다.

목차

1. Objective
2. Result
3. Discussion
4. Factors of error
5. Reference
6. Summary

본문내용

1. Objective

1) Understand liquid-liquid extraction
2) Understand the principle of extraction instrument
3) Draw the graphs of the concentration of acetic acid and find out relation of liquid-liquid extraction and extraction conditions such as stroke or flow rate.

<중 략>

4. Factors of Error
When stroke was decreased from 60 rpm to 30 rpm, the concentration of acetic acid was decreased in the light liquid. On the contrary, the concentration of acetic acid was increased in the heavy liquid. That means, as rpm decrease, the amount of extraction is increased. But, in fact, extraction occurs well when rpm is high, Therefore, we can suppose that there are some factors of error.

1) Titration
We titrated heavy liquid with 1M NaOH solution. But, pH meter measuring pH exactly was not used. The device used was eyes. The moment where color is changed would be various according to observer. To get a better result, we have to use pH meter. In addition we repeat a lot of times.

참고 자료

Manual_ChemE Lab II (2020) p.56 ~ p.63
Riddick 1970, Table of Physical Properties, Water 0b. p. 67 ~ 68