1 ©2014, Carolina Biological Supply Company Determination of Acetic Acid Concentration in Vinegar Using Titration Pre-laboratory Question1.Write the balanced equation for the neutralization of acetic acid by sodium hydroxide. 2.The Food and Drug Administration (FDA) mandates that all vinegar sold in the United States must have a minimum concentration of 4% acetic acid by mass. Calculate the minimum molarity of acetic acid in vinegar according to this standard. Assume the density of vinegar is the same as for water. 3.Calculate the mass of NaOH required to make 0.40 L of a 0.50 M solution. 4.Read through the laboratory procedures and then diagram the procedures using illustrations and/or a flow chart to describe the steps. Ensure that your diagrams are labeled with quantities and descriptions.Place the 10 mL graduate cylinder onto the electronic balance, tare the balance. Then, add 5 mL of vinegar and 2 drops of phenolphthalein into the cylinder.
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- Spring '14
- pH, Sodium hydroxide, Carolina Biological Supply