If the purpose is to test aqueous solutions for chloride, then search the web for colorimetric methods. They will be sensitive down into the ppm, as I recall....
I was thinking of using the liquid phase, so the chloride is in solution. Room temperature (25-35 degrees Celsius) and sea level pressure (~1 atm). Accuracy up...
I agree. I also wanted to use the gravimetric analysis but then, the cost for silver is prohibitive and the regulations for lead solutions is terrible!...
Thanks. I was trying the gravimetric methods but hit some snag on the reagents. Also, the chloride selective probe for the concentrations I'm working on is...
Ok. Can you suggest just one colorimetric method or a site I can get a method? Thanks. ... _________________________________________________________________...
Thanks. I think this is just what I need. Any idea on the principle behind it? ... _________________________________________________________________ ...
Color change associated with redox indicator, as I recall. There should be elaborate kits and small spectrophotometers for greater flexibility and precision....
Hello, this is my first post to this group.... I have a bit of confusion with respect to the IUPAC nomenclature of Co- ordination compounds...for the bidentate...
Thanks for the tip. Will do. ... _________________________________________________________________ Express yourself instantly with MSN Messenger! Download...
hi... In any analytical chemistry books (by skoog et.al, harris, hargis, christian, etc), only the word REPLICATE is defined. And Skoog et al (1996) define it ...
hi if sampling is done once then it is a trial. but if more than once then each of these trials can have multiple replicates. a replicate is only done if...
hi, there is a fortran code for a detailed simulation of multicomponent distillation called whendi. it was first written by Seader S. in 1969. i was able to...
Dear users, Are you use in your work Scientific Letter software? On it site http://www.sciletter.com write next description: "Scientific Letter is an original...
Helarky1173, Converting grams into moles is a good question. Plus, I can relate to those "blocks" - what happened to that info in my brain? Where is it?...
... How ... I believe this question has already been answered, but here's my two cents worth: BEWARE THE WATERS OF HYDRATION!! Many times one has to calculate...
I was trying this web quiz on sig figs and I got this question: Q: How many sig figs in the answer to 2.311 - 2.31? A: 3 Could someone explain that one to me? ...
Pardon Spy: It is a matter of how many figures in the number one can depend upon. If you measure something, and it comes up 2.311, then you know that value to...
Leftmost zeroes are not counted as significant, according to most convention. Thus, both 0.00231, 2.31 and 0023.1 has the same number of significant...
Zeroes both to the left of a number and to the left of the decimal point are not significant. It is merely a placeholder. To illustrate, the zeroes of...
divide by the Mr/ar of that something kelarky1173 <kelarky1173@...> wrote:I should know this but am having a block, lack of glucose I guess. How do I...
I say you are correct with 2 as the answer. The way the question is worded asks for the number of sig figs in the answer, not the number of sig figs in the...
Matt, You are correct that there are only two significant figures. The answer of three is not correct. (Tests and quizzes can be frustrating when the answers...
Having problems with message search?
Fill out this form to ensure your group is one of the first to be migrated to the new message search system.
