hermanntrude

If you have FeCl3 liquid, you must have a very high temperature, in which case, to get a solid, just cool it down. IF, however you have FeCl3 as a solution, then that's different

OK first check to see how many moles of each reactant you have. Check with the formula to see which one is the limiting reactant. Then use the stoichiometric coefficients to determine the maximum number of moles of water it's possible to make, finally, convert this to mass. Any problems, just ask. Next time, try to be a bit more specific about what the trouble is, exactly. popcorn, please don't give out answers in the homework help section. read the rules

thread moved. Please post homework in the "homework help" forum

capn, what's come over you? This should be in homework help. Thread moved

How about rose (red) gold? It's an impure alloy of gold... probably with copper or something in it. It has a beautiful reddish colour to it. It's my favourite decorative metal. here's an example:

you see, jdurg, I'm not stating that you're wrong, I'm just worried that you might be. It'd be better to not sell things illegally and find out you can, than sell thing illegally and then find out you shouldnt have been

doesnt mean those places arent licenced, or just doing it illegally

i'd be prepared to bet that there are no complex carbs in coca cola. All the carbs are sugars they're also calibrated to work in very specialised conditions... at the very least, the pH would need to be controlled

you could read the nutrition information on the cans

are you one of my students? I taught them this just yesterday. Moved to homework help

i suspect you'd need a license of some kind

is it legal to sell sodium? And it doesn't actually belong to me personally, so even if it is, it isn't

it's very easy to make a pH indicator with various vegetables. I've never heard of the onion peel one... perhaps the red onions would work. The one that is most commonly used is red cabbage. Many coloured substances in vegetables are sensitive to pH changes. I'm not really sure how you'd make the papers... perhaps just soak the papers in a solution of whatever it is you've extracted. here are a couple of links: LINK LINK

moved to homework help

I often thought about doing something like this... particularly now that I have 3 pounds of sodium i want to get rid of... the trouble is that it basically (no pun intended) results in contaminating an entire watershed with sodium hydroxide

i teach university courses but at a college. Transfer courses

it didn't happen to my class. They caught on to what I meant. Perhaps mine are older?

I tell my students that they're completely welcome to copy if they want to. I also point out that if they do they'll probably fail. the only kind of copying I recommend is when you copy someone's method

I had a breakthrough today, so after I washed my hands and flushed the toilet, I went back to my office and solved a problem I've had for some time... I used to avoid any equations with a delta on the arrow or a catalyst when doing my powerpoint slides for teaching. Today I figured out how to do them. I downloaded a free evaluation version of "font creator", and edited the already very good RSC.ttf file which I downloaded from the RSC's website. I now have a right-hand arrow with a delta on top, and a right-hand arrow with a Pt on top. Any suggestions for other symbols I should create before my evaluation period runs out? When it's complete I'll make it available to you guys I guess... the only slight drawback is that you have to install the .ttf file on every computer you use the font with, but that's easy to do

These arethe two things which spring to every chemistry student's mind when they see the demonstration. The demonstration should really include a breif talk about francium. Also see this link, which explains why the explosion actually gets LESS big after sodium and potassium...

i'd like to see you get hold of gold oxide I take it back... I just researched my own post and to my surprise: gold (III) oxide

thanks for the warning

Has anyone here ever demonstrated the thermite reaction using any other metal besides iron oxide? I'd like to try this reaction using at least three oxides. wikipedia states that it is possible with Cr2O3 and CuO...

i think he/she left feeling that any forum without analytical, chromatography and "exactly what my field is" forums isn't good enough

the advice is to post in general chemistry if it doesn't fit anywhere else.