Please help me out with some info. I am trying to understand data curve fitting. Specifically, I am working on a spreadsheet to do the regression curve for...
My first thought on your question is that you are trying to overextend the linear range of your calibration curve. With AA Beer's Law has a profound effect and...
As previously mentioned, AA typically offers a second order curve. This is correct. You shouldn't force any curve through zero unless it is a true point. ...
**posted on Organic Msg board.. sorry for duplicate**<br>Quick question... Trying to find definative answer if there is a test to distinguish Methanol from...
Wow, i sence a little hostility here. Interesting you are all on the topic of household chemicals being that it is my area of research, hence the previous post...
Thanks for the info garrity_bt, bbrookuk. We do a lot of linear curve fitting (y=mx+b)in chromatography. I haven't done quadratic curve fits before....
Try to add few mgs of borax (sodium tetraborate)or boric acid to the alcohol, and ignite it. If methanol is present, the flame will be of green colour. ...
I tried the experiments, and produced really nice colors, BUT, it works for both Methanol and ethanol using BORIC Acid. I recall something in firework...
Sorry to disagree there, but in my instruction the actual test is there to differ between methanol and ethanol. Methanol will for energetic reasons form methyl...
I'm just telling you what I saw... Both Methanol and ethanol formed green flames with only boric acid in the alchohols. My adviosr actually publsihed work ...
Here's one from Fritz Feigl, "Qualitative Analysis by Spot Tests" published by Elsevier in 1946 (I collect old chemistry books. There's a lot of good...
... <br>thanks.. Do you really want to try and regenerate the packing or do you just want to clean it? I don't think it's practical to try and regenerate a...
... anybody could give me a small list of basic equipment i would need to get started.<br>thanks Look, if you don't even know enough about chemistry to know...
... is a ... Boiling isopropyl alcohol over the open flame of an outdoor barbecue is not at all a good idea. You'd do much better boiling it on a hotplate...
i'm a new member here and im very happy to meet you in this club,i hope we will spend funy and important times here.Im also moderator for inorganic chemistry...
Balancing equations... Cu + 2AgNO3 --> 2Ag+Cu(NO3)2 We had to make an atom inventory and tell if it was balanced or not.. Elements reactants products ...
If the assigned equation is as you have written (which seems reasonable) and assuming the 3 in NO3 is a subscript, as is the 3 and 2 in (NO3)2) I honestly...
He must of been talking about this one because this is the only left that I got wrong... I had to balance this equation.. Fe+H20 --> Fe3O4+H2 my answer is... ...
Okay, now this one may have a problem. Could it be Fe2O3 rather than Fe3O4? Iron commonly exists in two oxidation states, +2 and +3, and oxygen typically has...
"FeO for +2 ... A valence of +8/3 per Fe atom would indeed be odd; But Fe3O4 is not odd at all! It's called "ferrosic oxide." Some of the Fe is +2, some is...
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