Posted by jody on Saturday, May 4, 2013 at 9:36pm.
A solution containing both Fe
can be selectively analyzed for Fe
buffering to a pH of 2 and titrating with EDTA. Th
e pH of the solution is then raised
to 5 and an excess of EDTA added, resulting in the
formation of the Al
complex. The excess EDTA is then back-titrated usi
ng a standard solution of Fe
providing an indirect analysis for Al
Show that at a pH of 2, the formation of t
- EDTA complex is
favorable, while the formation of the Al
- EDTA complex is not.
- analytical chemistry - noha, Sunday, May 5, 2013 at 1:05pm
The percent (% w/w) water in a freeze-dried antibiotic is determined
in the following manner. A 0.175-g sample is placed in a vial along with 4.489
g of methanol. Water in the sample extracts into the methanol, which is then
analyzed. If GC analysis of the methanol yields a peak height of 13.66, what is
the % w/w water in the antibiotic?
Answer this Question
More Related Questions
- analytical chemistry - An EDTA solution is standardized against a solution of ...
- Analytical chemistry - A 25.0-mL solution of 0.0660 M EDTA was added to a 33.0-...
- Chemistry - The following data was obtained from titrating a solution containing...
- Chemistry - You are titrating 50ml of a 0.02M solution of Zn^+2 at pH 7 with 0....
- Science (chemistry) help please - The following data was obtained from titrating...
- Chemistry - The reaction of a metal ion, M^2+, with EDTA is given in the ...
- Chem 2 - A 100-mL sample of water is titrated with EDTA solutions in problem 2. ...
- Chemistry - A 25.00 ml sample of a standard solution containing 1 g of CaCO3/L ...
- Chemistry (titrations) - 15.00 mL of 0.01200 M EDTA were used to titrate 50 mL ...
- chemistry - 25.00 mL aliquots of the solution from Part 1 are titrated with EDTA...