Recent content by flumbie

found out how it works Its not the Cu++ that's the catalyst its actually Cu. The copper ions in the CuSO4 are reduced by zinc which provides a coating of copper to cover the zinc. An electrolytic cell is made where the more reactive metal (Zn) is the anode and Cu is the cathode, with the HCl...

It's actually a pretty slow reaction (using 3M HCl at least).

bumped Does no one know or do you just not want to tell me?

I'm having some trouble understanding what happens when Zinc and Hydrochloric acid are reacted with Copper Sulfate as a catalyst. I *think* the Copper ion gets electrons from the zinc and turns into straight copper which leaves zinc free to react with the chlorine to form zinc chloride. Does...

When performing an ascorbic acid titration with iodine solution, iodine and potassium iodide are used. Does the potassium iodide react with the ascorbic acid as well or only the iodine? Thanks

Im having a bit of trouble understanding g-forces. I get that you divide the forces acting upon an object by 9.8 to obtain the number of g's but does that include forces like force normal? I am also having trouble applying them in situations when acceleration is in different directions such as...

anyone care to elaborate? a link maybe? i seem to be having trouble finding anything with google. many thanks in advance

Is there a quantitative test for the amount of sulfur dioxide in orange juice. Nothing too complicated, I am only in year 11. Can it be done using titration?

i can see a lot of things mentioning it but not any telling me how to do it

Is it possible to make a quantitative test for protien using biurets test - if so how would you do it? Does it involve titration?

Thanks Yeah, thanks a heap

Homework Statement Heres the problem i have been given in Grade 11 Physics for homework (keep in mind that i haven't done calculus yet so don't do anything too tricky): A satellite of mass 240 kg moving in free space at a velocity of 6000m/s is struck by an unknown object which causes it to...