W h i c h p a r a m e t e r i s u s e d t o d e t e r m i n e t h e a n a l y t e c o n c e n t r a t I o n i n U V - V i s s p e c t r o p h o t o m e t r i c m e a s u r e m e n t s ? p a t h l e n g t h v o l u m e o f c e l l w a v e l e n g t h a b s o r b a n c e

W h i c h p a r a m e t e r i s u s e d t o d e t e r m i n e t h e a n a l y t e c o n c e n t r a t I o n i n U V - V i s s p e c t r o p h o t o m e t r i c m e a s u r e m e n t s ? p a t h l e n g t h v o l u m e o f c e l l w a v e l e n g t h a b s o r b a n c e

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter18: Electrochemistry

Section: Chapter Questions

Problem 9RQ: What characterizes an electrolytic cell? What is an ampere? When the current applied to an...

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W h i c h p a r a m e t e r i s u s e d t o d e t e r m i n e t h e a n a l y t e c o n c e n t r a t I o n i n U V - V i s s p e c t r o p h o t o m e t r i c m e a s u r e m e n t s ?

p a t h l e n g t h

v o l u m e o f c e l l

w a v e l e n g t h

a b s o r b a n c e

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M o b i l e ph a s e i n l i q u i d ch r o m a t o g ra p h y . a. O r g a n i c s o l v e n t o r a m i x t u r e o f w a t e r a n d a n o r g a n i c s o l v e n t b. I n er t g a s s uc h a s n i t r o g en c. S o l i d s u p p o rt s u c h a s a f i l t e r p a p e r
A 5 0 . 0 m L o f 0 . 1 2 0 M H C N ( K a H C N = 6 . 2 0 x 1 0 - 1 0 ) i s t i t r a t e d w i t h 0 . 1 0 0 M N a O H . W h i c h i n d i c a t o r i s m o s t s u i t a b l e f o r t h i s t i t r a t I o n ? c h o o s e : B r o m c r e s o l G r e e n ( p H r a n g e 3 . 8 - 5 . 4 ) C r e s o l P u r p l e ( p H r a n g e 7 . 6 - 9 . 2) B r o m c r e s o l P u r p l e ( p H r a n g e 5 . 2 - 6 . 8 ) A l i z a r i n Y e l l o w ( p H r a n g e 1 0 . 1 - 1 2 . 0 )
A)s/s B)p/p C)s/sp D) s/sp2 E)s/sp3
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Table 17-1 lists common half-reactions along with the standard reduction potential associated with each half-reaction. These standard reduction potentials are all relative to some standard. What is the standard (zero point)? lf is positive for a half-reaction, what does it mean? If is negative for a half-reaction, what does it mean? Which species in Table 17-1 is most easily reduced? Least easily reduced? The reverse of the half-reactions in Table 17-1 are the oxidation half-reactions. How are standard oxidation potentials determined? In Table 17-1, which species is the best reducing agent? The worst reducing agent? To determine the standard cell potential for a redox reaction, the standard reduction potential is added to the standard oxidation potential. What must be true about this sum if the cell is to be spontaneous (produce a galvanic cell)? Standard reduction and oxidation potentials are intensive. What does this mean? Summarize how line notation is used to describe galvanic cells.
There can be multiple answers: a. P b. Cl c. S d. Ca e. K f. Si g. Ar h. O
S.s.s.s.s.s.g.g.g.f
Jj.134.