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02-08-2024
Chemistry

Answered

Calculate [NaC₂H₂O₂] in a buffer solution where [HC₂H₂O₂] = 0.30 M and pH = 5.20. The Ka for HC₂H₂O₂ at 25°C is 1.7 × 10⁻⁵.
A. 0.94 M
B. 0.81 M
C. 0.62 M
D. 2.69 M

Answer :

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