20 mL of 0.1M titrand titrated with 0.1M titrant. Data points at 1 mL increments

Question

20 mL of 0.1M titrand titrated with 0.1M titrant. Data points at 1 mL increments.

(a) Is the species being titrated an acid or a base? _____(acid or base)

(b) Is the species being titrated strong or weak? _______(strong or weak)

(c) What is the value of Ka (if a weak acid) or Kb (if a weak base) for the species being titrated?
If the species is strong (100% dissociated), enter 999. __________

20 mL of 0.1M titrand titrated with 0.1M titrant. Data points at 1 mL increments. 14.0 . 12.0 10.0 8.0 6.0 4.0 2.0 0.0 40.0 50.0 20.0 30.0 0.0 10.0 Volume of titrant (mL)

Explanation / Answer

(a) the species being titated is acid for example ( monoprotic acid HCl) pH started around 2.0 so strog acid.

(b) the acid is strong acid , because 20 ml of base ( for example NaOH) needs 20 ml of acid( from graph) to reach endpoint that is neutralization point. henece eqaul molarities of acid and base neutralised at endpoint.

(c)here species is strong acid and it can dissociates completely that is 999.

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