Pre Lab Questions Chemistry Titration

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Pre-lab Questions
Table 1: Calculation of pH and Nature of the Solution
Hydronium Ion Concentration (H3O+)
pH
Nature (Acidic, Neutral, Basic)
4.3 x 10^-11
10.37 Basic
2.1 x 10^-5
4.68
Acidic
2.5 x 10^-8
7.60
Slightly Acidic
Calculations for Table 1
1. pH = -log(H3O+)
2. For 4.3 x 10^-11: pH = -log(4.3 x 10^-11) = 10.37
3. For 2.1 x 10^-5: pH = -log(2.1 x 10^-5) = 4.68
4. For 2.5 x 10^-8: pH = -log(2.5 x 10^-8) = 7.60
Table 2: Conjugate Bases of Given Species
Species
Conjugate Base
H2SO4
HSO4H2PO4HPO4^2HClO4
ClO4-
Table 3: Calculation of pH, pOH, and Ion Concentrations for Sodium Propanoate S …
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