Table 1 – All Attempted Trials Between The Acid “Unknown B”, And The Base, (NaOh).
|Trial||Initial Burette Volume Reading (mL)||Final Burette Volume Reading (mL)||Volume Of Base (Titrant) Added (mL)||Success Or Fail|
|*Trial 5 was an outlier: potential contamination or measurement error lead to this result.|
Table 2: Successful Titration Trials Between Acid “Unknown B”, And Base, (NaOh), Where Endpoint Was Achieved
|Initial Burette Volume Reading (mL)||8.20mL||16.2mL||32.0mL||–|
|Final Burette Volume Reading (mL)||16.15mL||24.0mL||39.9mL||–|
|Volume Of Base (Titrant) Added (mL)||7.95mL||7.80mL||7.90mL||7.88mL|
Goal: Find the concentration of acid “Unknown B” if 10mL of acid was neutralized completely with a base solution of sodium hydroxide that has a concentration of 0.2 mol/L.
Concentration Of Base NaOH = 0.20 mol/L Average Volume of Base NaOH = 7.88mL Volume of Acid “Unknown B” = 10.0 mL
Calculating/Solving For The Concentration Of Acid “Unknown B”:
Therefore, the concentration of the unknown acid “Unknown B” is 1.5766 x 10mol/L.