A couple of questions of acetic acid

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SUMMARY

The discussion revolves around a lab experiment involving acetic acid concentrations and the hypothesis that women possess better color vision than men. Two students reported acetic acid concentrations of 4.5% and 4.8%. Based on the premise, the student with the higher concentration (4.8%) is inferred to be female due to potentially better color differentiation. Additionally, the calculation of the mass percentage of undiluted acetic acid involves determining the mass of vinegar and using the concentration of NaOH to find the mass of acetic acid through stoichiometric relationships.

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termite
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Had a lab few days ago and a question was presented:

[q]Some people claim that women possesses better color vision than men. Suppose ths is true. Two people perform this experiment and their results are as follows:

Student1: Acetic Acid Concentration - 4.5%
Student2: Acetic Acid Concentration - 4.8%

Based on the gender claim which student is male and which is female? Explain your reasoning.[/q]

:rolleyes: I am not exactly sure how to answer it. Can anyone help? :rolleyes:

Second:

I have the following results from my experiment after three trials: Mass of Erlenmeyer flask=A, Mass of flask and vinegar=B, mass of vinegar=C, initial volume of buret=D, final volume of buret=E, volume of NaOH delivered=F, and concentration of NaOH (mol/L) on bottle=G. I am asked to find Mass % of undiluted acetic acid and average mass % of undiluted acetic acid. We weren't given any formulas on how to determine this. Does anyone know what I would do in this case?
 
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If your first question involves the use of vinegar, then the first one should be female, I think.

About your calculations, C is A-B, and F is E-D. The millimole amount of NaOH is G*F. The mass of undiluted acetic acid can be found my equalizing the millimole of NaOH and then multiplying with the molar mass of compound (C=12, H=1, O=16 g/mol).
 
termite said:
Had a lab few days ago and a question was presented:

[q]Some people claim that women possesses better color vision than men. Suppose ths is true. Two people perform this experiment and their results are as follows:

Student1: Acetic Acid Concentration - 4.5%
Student2: Acetic Acid Concentration - 4.8%

Based on the gender claim which student is male and which is female? Explain your reasoning.[/q]
maybe the student 2 is female because the student was able to diferenciate between the colors of the pH indicator used more accuarly than the first student. 4.5% could just be an estimation that the percentage is somewhere between 4 and 5, but 4.8% is a seemimgly more precise responce. I don't like way the question is given.
 
Hmm, a nice approach indeed. I haven't thought this through. Congrats.
 

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