Recent content by desy.kris

V = E - Ir Ir = -V + E I = -V/r + E/r if you look at it carefully, it's actually: I = mV + c which is y = mx + c the c is non-zero constant.. it's E/r. therefore the graph does not pass through the origin

Wait, so NaF reacted with both Fe(NO3)3 and Fe(SCN)3 ? F- ions displace both NO3- ions and SCN- ions? Or only SCN- ions? I sort of get it now, the complex ion's concentration has decreased that's why it turned colourless, yeah?

Hello I am doing the same lab. I have reacted KSCN with Fe(NO3)3, then after that I added NaF (sodium fluoride) and it turned colourless. Why? What happened? How has the concentration of the complex ion or Fe(SCN)3 been affected? The fluoride ions do not react directly with Fe(SCN)3 but they...

I'm doing IB too and I am thinking of doing Math too! :S

I got the conjecture and proved it already, but my teacher said I need to find the formula for the length of the side of the inner triangle to prove it once more time because at first I used approximation for the values of the ratios. can anybody help me to find the formula for the length of the...

hello I am doing this portfolio too, for a pre-IA task. not formal, only for a practice. and i don't know how to get the conjecture, could any of you help me please? I'm really stuck and don't know what to do