Hey there ppl! I am doing an Acid/Base Titration to investigate whether the concentration of citric acid lemon juice, change over a period of 5 days. So i kindda need some help in this experiment, cause we are not allowed to ask our teacher any help! The main purpose of this experiment is that to see if we can do an experiment without any inputs from our teacher. So i had to come up with my own method and do my own experiment, and plus no one in our school can do the same experiment, so therefore we can't compare out results with anyone else. So my questions are: 1. Will the concentration of citric acid actually varies over a period of 5 days? My Answer : Nope, it won't vary, cause a period of 5 days is too less 2. What are the average titre values for this experiment, when 0.2 M of NaOH is in the burette, and 60 ml of diluted lemon juice is in the conical flask? My answer: The values i got were around 23.1-23.8 These are my answers, can someone here check my answer if you guys have done this experiment? I never got a Not Achevied in my entire chemistry assessment, so i don't want to fail this one, Only 3 ppl out of my whole country got an Excellence for this experiment, so i am really scared about passing with an Excellence. Can someone here help me please?