Question

2) Ethylenediamine tetraacetic acid (EDTA) is a hexaprotic acid that was used as a food preservative to prevent metal leaching in canned food before monolayer coatings were developed. Let’s say that you find an old can of spam in your grandparents kitchen from 1946, and one of the listed ingredients is EDTA. You decide to collect the fluid from the spam container and titrate it with base to determine the concentration of EDTA.

a. Write the chemical formula for EDTA with all of the acidic hydrogen atoms listed first

b. Determine the molarity of a Ca(OH)2 solution you make by dissolving 6.557 grams of Ca(OH)2 into a 750.00 mL volumetric flask to titrate your sample.

c. Write the balanced chemical reaction that occurs when you titrate your Ca(OH)2 solution into the spam fluid containing EDTA (assume only EDTA is present in the spam)

d. If it takes 35 mL of your Ca(OH)2 solution to titrate the spam fluid to the end point, what is the concentration of EDTA in the spam container in molarity, if the spam fluid being titrated has a volume of 16 fluid oz?

Answer 1