Hi.
I've just completed two rounds of my biology spa exam and there are just some questions that really require the answers or else I'll just feel bad for the rest of my life.
Okay, so firstly, in my skill 1 and 2 spa exam today, I made a mistake in one of the questions in my report. However, besides that, my answers were pretty much correct. I would like to know whether this mistake would cost me my A1 grade greatly, since spa exams are 20% of the total marks. In addition to this, I am not confident for my answers in the first spa exam. Also, can you please kindly tell me how much a wrong answer costs me?
Secondly, I was wondering if my skill 1 assessment would be affected as my lighter for the burner wasn't working, despite subsequent tries to light a flame by the examiner. Does this cost me my full marks for skill 1?
Also, I was thinking, what are the sources of errors in titration, given that the reagents do not contain impurities?