Things I do not miss:
Lab Objectives: To conduct acid-base titrations in order to determine the equivalence points of a strong acid-strong base titration and a weak acid-strong base titration, as well as calculate the molar concentrations of the two acids.
Post-Lab Questions:
1. Hydrochloric: (0.0091L)(0.1M)=0.00091 moles NaOH (Trial One)
Hydrochloric: (0.0089L)(0.1M)=0.00089 moles NaOH (Trial Two)
Acetic: (0.0081L)(0.1M)=0.00081 moles NaOH (Trial One)
Acetic: (0.0082L)(0.1M)=0.00082 moles NaOh (Trial Two)
2. Mol= volume*[ ]
Hydrochloric: 0.00091 mol=(0.010L)*[ ]
[HCl]=0.091M
Acetic: 0.00082 mol=(0.010L)*[ ]
[HC2H3O2]=0.082M
3. Our trial value for hydrochloric acid was 0.091M, and the accepted value is 0.1M, 9% margin of error. Our trial value for acetic acid was 0.082M, and the accepted value is also 0.1M, 18% margin of error.
4. The titration curves are not in the same pH range because though the strong base NaOH is used for both titrations, HCl is a strong acid and HC2H3O2 is a weak acid.
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