Chemistry Lab Homework: Reaction Rates & Concentration Calculation

[Revengeance]

Homework Statement

Hello all, I am doing this lab http://scc.scdsb.edu.on.ca/Students/onlinecourses/Sikora/sch4u/v12/60.pdf

i am stuck on trying to find hte concentration of ch3cooh

Homework Equations

n = m / M and c = n*vand i think the ideal gas law could be used but not sure

The Attempt at a Solution

so the volume of ch3cooh for the first trial is 0.02L, and in order to find the concentration i must find the moles

 

[Bystander]

concentration of ch3cooh

If you are told "vinegar" is three per cent acetic acid by weight, does that help?

n = m / M and c = n*v

You're going to have to tell us what these letters mean; we aren't mind readers.

so the volume of ch3cooh for the first trial is 0.02L, and in order to find the concentration i must find the moles

Twenty milliliters of vinegar at three per cent? Or twenty milliliters of acetic acid?