Menu

Recap - Vinegar Test

Part of the Acids and Bases section of Coddy's Chemistry journey. Lesson 28 of 30.

Challenge

A vinegar label says it holds ethanoic acid, CH₃COOH. To check, a lab technician puts $5\ \mathrm{mL}$ of the vinegar in a flask with phenolphthalein and adds $0.5\ \mathrm{M}$ sodium hydroxide from a burette. The solution turns pink after $8\ \mathrm{mL}$ :

CH₃COOH + NaOH → CH₃COONa + H₂O

What is the concentration of ethanoic acid in the vinegar?

Try it yourself

Physics diagram: beaker

Solve for $c_{a}$

All lessons in Acids and Bases

1Acids and Bases

What Is an Acid What Is a Base Proton Transfer Conjugate Pairs Water as Acid and Base Recap - Proton Swap

4Neutralization

Neutralization Net Ionic Equations Salts Titration Titration Calculations Recap - Titration Lab

2Strong and Weak

Strong Acids Weak Acids Ions in Acid Solutions Recap - Acid Strength

5Acids Around Us

Indicators Acid Rain Antacids Recap - Soil and Lime

3The pH Scale

Ions of Water The pH Scale pH of Strong Acids pH of Strong Bases pOH Diluting an Acid Recap - pH Meter

6Practice Problems

Recap - Vinegar TestRecap - Stomach Acid Recap - Drain Cleaner