PRINCIPLES OF INSTRUMENTAL ANALYSIS
7th Edition
ISBN: 9789353506193
Author: Skoog
Publisher: CENGAGE L
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Chapter 5, Problem 5.10QAP
Interpretation Introduction
Interpretation:
The number of individual spectra that will be summed to increase S/N value from 4.3 to 430 needs to be determined.
Concept introduction:
Signal-to-noise ratio (S/N) is a scale used in engineering and science to compare the level of the signal to the background noise. It is defined as ratio of power of signal to the noise and it is expressed in decibels.
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we were assigned to dilute 900ppm
in to 18ppm by using only 250ml vol
flask. firstly we did calc and convert
900ppm to 0.9 ppm to dilute in 1 liter.
to begin the experiment we took
0,225g of kmno4 and dissolved in to
250 vol flask. then further we took 10
ml sample sol and dissolved in to 100
ml vol flask and put it in to a
spectrometer and got value of 0.145A
.
upon further calc we got v2 as 50ml
. need to find DF, % error (expval and
accptVal), molarity, molality. please
write the whole report. thank you
The format, tables, introduction,
procedure and observation, result,
calculations, discussion and
conclusion
Q5. Predict the organic product(s) for the following transformations. If no reaction will take place
(or the reaction is not synthetically useful), write "N.R.". Determine what type of transition state
is present for each reaction (think Hammond Postulate).
I
Br₂
CH3
F2, light
CH3
Heat
CH3
F₂
Heat
Br2, light
12, light
CH3
Cl2, light
No
None
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