Question: Use the References to access important values if needed for this question. A 1 7 . 4 m L sample of a 0 . 4

Use the References to access important values if needed for this question.
A 17.4mL sample of a 0.462M aqueous hydrocyanic acid solution is titrated with a 0.403M aqueous barium hydroxide solution. pH at the start of the titration, before any barium hydroxide has been added?
pH=
Use the References to access important values if needed for this

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