Isomer

This behaviour is NOT normal. This girl should seek some kind of assistance asap!

A sample of Na2S2O3 (aq) is titrated with acidified KMnO4 (aq) to a pink endpoint. One product of this redox reaction is SO4 2- (aq).

A product of the reduction half-reaction is

a. H +

b. Mn 2+

c. SO4 2-

d. S2O3 2-

Please note that the numbers behind the letters are supposed to be subscript.

I have no idea where to start. I know I should write some sort of half reaction, but with the info given, I don't know what the products would be!!!!

I do think that is a better idea.

What level of Science are you at? Are you in high school or at a higher level? Perhaps I'm being stereotypical but I'm thinking a high school level because it is a science fair.

If you can't think of an experiment to do, then I think you should switch your science project. Pick a project where you can think of an experiment to do.

Let us know what you do! Good luck!

I know they release nitrates, but do cars also release carbon dioxide? Or is it carbon monoxide? I really don't know much about vehicle emmisions, but I was watching a documentary about it, and now I'm curious!!!

I actually discussed this with my teacher and he said the formula to use is not q=mc^t but q=c^t. I am using this symbol ^ for delta.

Thanks for the responses though!

I'm really struggling with what to do with this question.....

A student designed a calorimetry experiment to determine the energy change for the following dissolving of ammonium nitrate and recorded the following results.....

heat capacity of calorimeter and water........................228 J / degree celsiu

initial temp of water..................................................21.6 degree celsius

final temp of water..................................................16.4 degree celsius

mass of ammonium nitrate...........................................0.250 grams

The amount of energy involved in this change is ____ kJ.

I've been fiddling with q = mc^t and with ^H = n^H.

Any ideas?? I'm not sure what to do!!!!

Hello There

My name is Isomer and I am taking a high school chemistry course! I'll probably be posting in the homework section quite a bit! I look forward to getting to know you all!

I enjoy bodybuilding and the Simpsons!

See you soon!!