I have been trying to find the concentration of copper in a copper sulphate solution and i was wondering if someone could check my calculations and maybe set me straight on a few things. Rep will be given of course.
Titration
I put 25cm^3 of copper sulphate solution into a conical flask, and...
The beam current in a television tube is 32mA. The electrons travel at a speed of 4.2x10^7m/s through a distance 21cm.
a) The number of electrons striking the screen in 1 hour is?
I did: Q=IT = 0.032A x (60x60)s = 115.2 C
Number of electrons = 115.2/1.6x10^-19 = 7.2x10^20
b) The...
Hi guys, I am trying to work out ρ in an experiment.
Ive got down to ρ/AxV = 6.4
I know V = 2 and A=0.0907mm, but it should be m.
If i then work it out i get a stupidly small answer. Anyone help me out. Its like 0.0016096
Hi, sorry to bug you, but i am currently doing my courseowrk too, and my teacher told me to do mine on resistivity, but not sure how to conduct the experiment. Should i be measuring the voltage and current, and working out the resistance, to then determine the resistivity?
How do you do it?
I am going to be doing this experiment, and changing the length. So would i be measuring the voltage and current, then working out the resistance. And from that work out the resistivity of the wire?
Would this be ok?
Hi guys, I am currently in my AS year and a piece of coursework on resistivity of metals, how you derive the equation.
But for the coursework i have to write an abstract on it, linking my experiment to a case study, does anyone have any good websites or information to help me out.
This is...
Could anyone help me with this, i have an answer but I am sure its not right.
Bleach is an aqueous solution of sodium chloride and sodium chlorate(l), NaClO, in a 1:1 ratio. It is produced by dissolving chlorine gas in cold dilute aqueous sodium hydroxide.
a) write a balanced equation for...
Thank you so much, you have been a massive help. I think i understand it a lot more and i will check that website out. I was used examstutor because our school signed us up to it.
Do you have any ideas about this?
a ) How would the resistance of a piece of wire change if
i) the length...