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05-04-2024
Chemistry

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HC₂H₂O₂(aq) + H₂O(1) ≈ H₂O+ (aq) + C₂H₂O₂¯(ag) The chemical equation above represents the acid ionization equilibrium for HC₂H₂O₂ for which pK, -4.8. Which of the following is the best estimate for the pH of a buffer prepared by mixing 100. mL of 0.20 MHC₂H₂O₂ with 100. mL of 0.10 M NaC,H,O₂?
A. 1.0
B. 4.5
C. 4.8
D. 7.0

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