What is the pH at the equivalence point in the titration of a 23.0 mL sample...

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Chemistry

What is the pH at the equivalence point in the titration of a23.0 mL sample of a 0.304 Maqueous hydrocyanic acid solution with a0.433 M aqueous sodium hydroxidesolution?
pH =
A 30.6 mL sample of a 0.393 Maqueous acetic acid solution is titrated with a0.296 M aqueous potassiumhydroxide solution. What is the pH after16.7 mL of base have been added?
pH =
When a 18.0 mL sample of a0.476 M aqueous acetic acidsolution is titrated with a 0.320 M aqueouspotassium hydroxide solution, what is the pH after40.2 mL of potassium hydroxidehave been added?
pH =

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4.1 Ratings (859 Votes)

a Hydrocyanic acid HCN 230 mL of 0304M number of moles of HCN 0304M x 0023L 000699 moles Concentration of NaOH 0433M at equivalent point volume of NaOH 0304 M x 230mL 0433 1615 mL M1V1 M2V2 V2 M1V1M2 at equivalent point number of moles of acid is equal to base number of moles 000699 See Answer

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