Explain what is the ph before any base is added

Reference no: EM13168770

A 25.0 mL sample of 0.150M hydrocyanic acid is titrated with a 0.150M NaOH solution. What is the pH before any base is added? The Ka of hydrocyanic acid is 4.9 X 10^-10.

Reference no: EM13168770

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