Find the mass % of acetic acid in vinegar. I need help figuring out the formula to use.
Standardized NaOH= .2688 mol NaOH
#g*** of diluted vinegar
#mL*** of diluted vinegar (to be titrated)
The ration of diluted vinegar is 4parts diluted vinegar/1part vinegar due to it has been diluted 3parts water to 1 part vinegar
This is for my lab, please note: any measurements with a *** I don't know the actual weight of until I get to lab. but I really want to know how to get the right calculations for this mass % lab, basically how to set it up before I get to lab

Question

Find the mass % of acetic acid in vinegar. I need help figuring out the formula to use. 
Standardized NaOH= .2688 mol NaOH
#g*** of diluted vinegar
#mL*** of diluted vinegar (to be titrated)
The ration of diluted vinegar is 4parts diluted vinegar/1part vinegar  due to it  has been diluted 3parts water to 1 part vinegar
This is for my lab, please note: any measurements with a *** I don't know the actual weight of until I get to lab. but I really want to know how to get the right calculations for this mass % lab, basically how to set it up before I get to lab

welshfella · Answer

vinegar is dilute acetic acid CH3COOH