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Wednesday, November 3, 2010
Wednesday
SCH 3U
Test Corrections
More on the MOLE
SBI 4U
Quiz
Tomorrow's Lab - be ready for a lab quiz - Q about reading on first page and draw/label a respirometer
SNC 1PE
Atoms Elements and the Periodic Table
Bohr Model
2 comments:
Anonymous
said...
Hi miss I found this thing on the Internet about copper and it solubilty at different ph. What I understood is that at low ph it forms a compound so Is spline and at high pibrochs another type of compound. But in normal ph is is insulbal it is true. An can this be used in my experiment
The only cobalt complex which is formed at pH's 6–8 is soluble and has the composition [Co2III(SAO)3]0. With nickel, an insoluble complex [Ni(SAO)2]0 is formed quantitatively between pH = 6 12. At pH ≥ 12 it is abruptly and completely transformed into the soluble complex [Ni(SAO)22−. K = [Ni2+] [SAO]2/[Ni(SAO)2−2] = 6·4 × 10−5. With copper, the insoluble complex [Cu(SAO)2]0 is quantitavely formed between pH 3–10, and it is completely and abruptly transformed into [Cu(SAO)2]2− which is soluble, at pH ≥ 11. K = [Cu2+] [SAO2−]2/[Cu(SAO)2−2] = 6·4 × 10−5. Ammonia does not interfere with the soluble complexes.
2 comments:
Hi miss I found this thing on the Internet about copper and it solubilty at different ph. What I understood is that at low ph it forms a compound so
Is spline and at high pibrochs another type of compound. But in normal ph is is insulbal it is true. An can this be used in my experiment
The only cobalt complex which is formed at pH's 6–8 is soluble and has the composition [Co2III(SAO)3]0.
With nickel, an insoluble complex [Ni(SAO)2]0 is formed quantitatively between pH = 6 12. At pH ≥ 12 it is abruptly and completely transformed into the soluble complex [Ni(SAO)22−. K = [Ni2+] [SAO]2/[Ni(SAO)2−2] = 6·4 × 10−5.
With copper, the insoluble complex [Cu(SAO)2]0 is quantitavely formed between pH 3–10, and it is completely and abruptly transformed into [Cu(SAO)2]2− which is soluble, at pH ≥ 11. K = [Cu2+] [SAO2−]2/[Cu(SAO)2−2] = 6·4 × 10−5.
Ammonia does not interfere with the soluble complexes.
Bring in your sources - specific sites where you are aquiring this information and we can go over it before school starts.
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