TEST OF PRACTICAL KNOWLEDGE QUESTION Burette readings(initial and final) must be given to two decimal places. Volume of pipette user must also be recorded b...

TEST OF PRACTICAL KNOWLEDGE QUESTION

Burette readings(initial and final) must be given to two decimal places. Volume of pipette user must also be recorded but on account of experimental procedure is required. All calculations must be done in your answer book. A is O.050 mol dm\(^{-3}\) of acid HX. Bis a solution of NaOH containing 0.025 moles per 250 solutions.

(a) Put A into the burette and titrate it against 20.00 cm\(^3\) or 25.00 cm\(^3\) portions B using phenolphthalein as indicator. Tabulate your readings and calculate the average volume or A used.

(b) your results and the information provided above, calculate the;

(i) amount of acid in the average

(ii) amount of base in 20.00 cm\(^3\) or 25.00 cm\(^3\);

(iii) mole ratio of acid to base

(c) Write a balanced chemical equation for the reaction between the acid H\(_y\)X and the base NaOH

(d) State the basicity of the acid H\(_y\)X.