LAB 4 CHM1311

Worksheet – Experiment 4

Acid-Base Titration




December 4th, 2020

, Graphs, Results and Discussion:
Part 1: Standardization of NaOH using a Primary Standard, KHP




Figure 1. Titration of KHP with NaOH (trial 1)


Table 1. Titration of KHP with Standardization of HCl

Data Determined Using Equivalence Point (First Derivative)
Trial Mass KHP, Amount KHP, V NaOH added, [NaOH], Unknown
g mol mL mol/L number
1 2.1 0.0103 33.19 0.3103 M 2

2 2.3 0.0113 33.84 0.3339 M 2
3 2.2 0.0108 34.06 0.3171 M 2
Average 0.3204 M 2
Data Determined using Endpoint (Visual Determination)
Trial Mass KHP, Amount KHP, V NaOH added, [NaOH], Unknown
g mol mL mol/L number
1 2.1 0.0103 33.2 0.3102 M 2

2 2.3 0.0113 33.8 0.3343 M 2
3 2.2 0.0108 34.1 0.3167 M 2
Average 0.3204 M 2
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