Please help if you're able. I really don't understand this at all.
A student has a flask containing nitric acid (HNO3 (aq)). She is not sure what the concentration of this acidic solution is and decides to perform a titration to determine the concentration. She transfers 10.00mL of the acid into an Erlenmeyer flask. She then places 0.025M sodium hydroxide into a burette. The results are in the following chart. Determine the concentration of the nitric acid using C1V1 = C2V2, show all steps.
Trial 1 2 3
Final burette reading (mL) 15.00 30.05 45.10
Initial burette reading (mL) 0.00 15.00 30.05
Volume of NaOH added ? ? ?
Average volume of NaOH added ?