H-8 
Molar Mass of your Unknown Acid. 
 
Unknown acid code:  ______________ 
 
 
1. 
For 
each titration (i.e. include the pH titration), calculate the number of moles of base required 
to neutralize the acid sample. Show all calculations including units and the correct number of 
significant figures.  (Do not use C1V1 = C2V2.). (0.5 marks) 
 
 
 
 
 
 
 
 
 
 
 
2. 
For each titration, calculate the molar mass of the unknown acid.  Include the correct 
stoichiometric ratio and units in your calculations.  (0.5 marks) 
 
 
 
 
 
 
 
 
3. 
Reported value for the molar mass of your unknown acid (accuracy).  (2.0 marks)  
 
 
 
 
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Signature of Laboratory Instructor 
 
Name of Student 
Laboratory Section