Following the monograph procedure, a 724-mg of aspirin (MW=180 g/mol) dissolved in 18.5 ml of cold neutralized alcohol. This solution was then initially titrated with 0.101 N sodium hydroxide solution, then later neutralized with 0.104 sulfuric acid.
Following the monograph procedure, a 724-mg of aspirin (MW=180 g/mol) dissolved in 18.5 ml of cold neutralized alcohol. This solution was then initially titrated with 0.101 N sodium hydroxide solution, then later neutralized with 0.104 sulfuric acid.
1. What is the total volume (mL) of excess titrant used in the titration?
a. 56.400 mL
b. 52.000 mL
c. 44.600 mL
2. What is the milliequivalent weight consumed by the acidic titrant?
a. 1.5392 g-meq
b. 2.0907 g-meq
c. 1.4948 g-meq
d. 2.1528 g-meq
3. What is the milliequivalent weight consumed by the basic titrant?
a. 5.8656 g-meq
b. 1.5392 g-meq
c. 5.6964 g-meq
d. 1.4948 g-meq
4. What is the difference of milliequivalent weight consumed in the reaction?
a. -4.1572 g-meq
b. 4.3708 g-meq
c. 0.5515 g-meq
d. 4.1572 g-meq
5. What is the percentage purity of the sample?
6. What is the titer value (mg) based from the specific type of titration?
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