In Experiment 3, you will determine the % w/w of citric acid in lemonade. You wi
ID: 483954 • Letter: I
Question
In Experiment 3, you will determine the % w/w of citric acid in lemonade. You will be doing an acid base titration to determine this value. Which of the following statements is/are true? There may be more than one correct answer; select all that apply. Question 1 options: One mole of base will react with one mole of ascorbic acid. One mole of base will react with one mole of citric acid. You must know the amount of ascorbic acid present in the sample before you can use your titration results to determine the amount of citric acid. Citric acid is triprotic acid and ascorbic acid is monoprotic so three times the amount of citric acid reacts as ascorbic acid. The titration that you will perform gives the concentration of all H+ from all the acids present in lemonade.
Explanation / Answer
Experiment for analysis of citric acid in lemonade by acid-base titration
True statements
One mole of base will react with one mole of ascorbic acid
Citric acid is a triprotic acid and ascorbic acid is a monoprotic acid so three times the amount of citric acid reacts as ascorbic acid
The titration performed gives concentrations of all H+ from acids in lemonade