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  • 12-03-2024
  • Chemistry
contestada

A chemist needs a solution buffered at pH 4.30 and chooses from the following list of acids and their soluble salts.
a) HA A⁻
b) HCl Cl⁻
c) NH₄OH NH₄⁺
d) HNO₃ NO₃⁻

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