(a) State an indicator suitable for the titration of;

(i) dilute HCl and NaOH\(_{3(aq)}\)

(ii) dilute CH\(_3\)COOH and KOH\(_{(aq)}\)

(iii) dilute HCl and NH\(_{3(aq)}\).

Give a reason for your answer in each case.

(b) Calculate the volume of water that would be added to 50 cm\(^3\) of 0.10 mol dm\(^{-3}\) of HCI to dilute it to 0.010 mol dm \(^{-3}\)

(c) Name one gas that could be used to demonstrate the fountain experiment.