Hi I am trying to work out what I need to put in the pro forma for this experiment.
View the step-by-step solution to:



I am trying to work out what I need to put in the pro forma for this experiment. I have

attached the experiment procedure and the results from the HPLC, along with the Proforma. We were given an excel spreadsheet to calculate the assess the calibration data and I am so confused what I need to do -

Q1a and b

Do I give one labelled diagram or all? Labelling the peaks of the one diagram?


How do I calculate the UNCERTAINTY - Is it "The mass fraction of phenol in the effluent sample was 50.00 ± 0.35 mg/L, (where ± 0.35 mg/L represents a coverage interval that includes the value of the measurand with at least 95% probability)."


Phenol can produce a toxic effect on humans through three key mechanisms of exposure:

1.    breathing air contaminated by phenol

2.    absorption through the skin or;

3.    by ingesting products contaminated with Phenol. (National Pollutant inventory database)

According to the Australian Water Quality Guidelines for Fresh and Marine Waters (ANZECC, 1992):

Maximum of 50 micrograms per Litre (i.e. 0.00005 g/L) in fresh or marine waters.

The oral LD50 value for humans has been reported as 140 mg/kg (Wiley, V-C-H, p.517)


The concentrations of phenol and 2-cholorphenol that were detected in the industrial effluent do meet the guidelines for drinking water???

Recently Asked Questions

Why Join Course Hero?

Course Hero has all the homework and study help you need to succeed! We’ve got course-specific notes, study guides, and practice tests along with expert tutors.

  • -

    Study Documents

    Find the best study resources around, tagged to your specific courses. Share your own to gain free Course Hero access.

    Browse Documents
  • -

    Question & Answers

    Get one-on-one homework help from our expert tutors—available online 24/7. Ask your own questions or browse existing Q&A threads. Satisfaction guaranteed!

    Ask a Question
Ask Expert Tutors You can ask 0 bonus questions You can ask 0 questions (0 expire soon) You can ask 0 questions (will expire )
Answers in as fast as 15 minutes