I have been given a graph to sketch.
The original graph was:
T= 20-4cos(pi(x-1)/12)
I think I understand how to graph this , but later on they change it to this:
T= 20-loge(x) 4cos(pi(x-1)/12)
What type of graph is that? I don't even know if it exists, as I can't find anything in the...
I was attempting to calculate the amount of mol of HCl was used and then using the mol ratio from the equation, calculate how many mole of nitrogen was present. The molarity of the HCl used was 0.1M and I was supposed to multiply it by 0.003933 (as this is the average of the titres) to find the...
Homework Statement
I undertook a practical experiment where a back titration was used to determine the amount of nitrogen in fertiliser.My titres are 3.9, 3.7 and 4.2 So I know this reaction occurred:
NH4+ + OH- ---> NH3 +H2O
I then boiled the solution to expel the Ammonia and the excess OH-...