5. A chemical technician is asked to determine the concentration of a nitric acid solution. She performs a titration experiment using standardized 0.125mol/L sodium hydroxide. The results of the titration are shown below. Titration of 10.0mL Samples of Nitric Acid with 0.125mol/LNaOH A) What is the concentration of the nitric acid in the above? (4 marks) B) Identify a suitable acid-base indicator to use for the above titration and indicate the colour change for the indicator selected. (1 mark)