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Analytical Chemistry
Page 8
Questions (747)
If I had two unknown chemicals (in solid form) mixed together, how could I go about identifying the individual components of the
5 answers
asked by
~christina~
568 views
The EPa detection limit for phosphate in water samples is 0.0450 milligrams per liter. Can phosphate be detected if 55.0
1 answer
asked by
Tyler
408 views
The EPa detection limit for phosphate in water samples is 0.0450 milligrams per liter. Can phosphate be detected if 55.0
1 answer
asked by
Tyler
382 views
What would be the effect of raising the temperature and increasing the carrier
gas flow rate on the ability to resolve two
2 answers
asked by
lili
741 views
Which has a higher Rf value Ibuprofen or mefenamic acid? please please please.i need your answers.
3 answers
asked by
lou
326 views
. A 25.0 ml sample of Ni2+ gave a weight height of 2.36 uA( corrected for a residual current) in a polarographic analysis. When
1 answer
asked by
ABDULALEH
633 views
What is the difference between proximate and ultimate analysis
3 answers
asked by
Thano
395 views
I need help finding information on how the conway microdiffusion is done/how it works. And why the sample is titrated.
Thank you
1 answer
asked by
~christina~
446 views
I need help finding information on how the conway microdiffusion is done/how it works. And why the sample is titrated.
Thank you
1 answer
asked by
~christina~
397 views
What method can be used to prove that 1000ppm calcium prepared two weeks ago remains 1000ppm
3 answers
asked by
Jah Jah
9 views
What method can be used to establish sodium concentration in corn leaves
3 answers
asked by
Jah Jah
13 views
What method can be used to expose metals in soil into solution for analysis
3 answers
asked by
Jah Jah
19 views
Please help me with these AP CHEM homework problems problems and show me the steps:
Mass per Volume Results for Titrations:
3 answers
asked by
shylo
549 views
You take 0.03 mo of the flowthrough fraction, measure the absorbable using the same conditions as in the standard curve above,
3 answers
asked by
Nadia
51 views
What method can be used to prove that 1000ppm calcium prepared two weeks ago remains 1000ppm?
3 answers
asked anonymously
18 views
What method can be used to expose metals in soil into solution for analysis.
3 answers
asked anonymously
142 views
Okay so I got the 39% from 5 runs on the spectrometer from volumetric flasks from 100-500 mL filled just sodium
5 answers
asked by
Suzy
460 views
And here is the discussion part of the lab
how would I put like a concluding sentence to this. DISCUSSION: This experiment was
1 answer
asked by
Suzy
482 views
[b]1.[/b]Is TLC a qualitative or quantitative analysis? Is there any way that it can be both? Explain.
~I say it can be both
2 answers
asked by
~christina~
726 views
Concerning TLC plates...
1. why should't I allow the solvent to reach the top of the plate? (I assume it's the same as using
3 answers
asked by
~christina~
805 views
What does titration in non-aqueous media mean? What is a non-aqueous media by the way?
3 answers
asked by
:kkk:
326 views
You perform gel filtration and measure an elution volume of 25 ml. When you calibrated the same gel filtration column, the
2 answers
asked by
MIchelle
475 views
Gas Chromatography Graph analysis
-- How can I find the peak area of incompletely separted compounds. I am not in the lab right
1 answer
asked by
nayeim
919 views
A sample is to be analyzed following a prescriptive quality assessment protocol with a detection limit for the method of
1 answer
asked by
JeSSica_21
406 views
An unknown was prepared with the concentration of 0.000120 M. A Beer's Law plot was prepared using the absorbance values from
1 answer
asked by
christine
490 views
Can you use TLC to distinguish various isomers from one another? In what kind of substance can you NOT distinguish the isomers
1 answer
asked by
Sarah
508 views
What is the difference between these two questions? They look the same to me, like they're asking the same thing. Not likely.
Que
1 answer
asked by
Sheryl
1,208 views
Question: You and another student were each given an unknown compound. Both samples contained colorless material. You each used
1 answer
asked by
Sheryl
824 views
What would be a newer more efficient method to do the qualitative analysis of an unknown. I am trying to find a good method and
1 answer
asked by
Jamshid
912 views
Types of chromatography
1 answer
asked by
Kelvin
69 views
Gas chromatography principle
1 answer
asked anonymously
27 views
How do you determine molarity from titration
1 answer
asked by
Kelvin
19 views
Discuss the principles of chromatography and its applications in separation and analysis
1 answer
asked by
Kelvin
37 views
Chromatography
1 answer
asked anonymously
18 views
Thin layer Chromatography
1 answer
asked anonymously
34 views
Gas chromatography
1 answer
asked anonymously
29 views
High perfomance liquid chromatography
1 answer
asked anonymously
11 views
Types of titration
1 answer
asked by
Kelvin
15 views
Types of indicators used in titration
1 answer
asked by
Kelvin
28 views
The following data were collected at the endpoint of a titration performed to find the molarity of an HCl solution:
Volume of
4 answers
asked by
vin
5,264 views
The chemical 5-amino-2,3-dihydro-1,4-phthalazinedione, better known as luminol, is used by forensic scientists in analyzing
11 answers
asked by
Danielle
3,431 views
A mineral sample is analyzed for its cobalt and calcium content. A sample is dissolved, and then the cobalt and calcium are
5 answers
asked by
DC
2,993 views
What would be the effect of raising the temperature and increasing the carrier gas flow rate on the ability to resolve two
4 answers
asked by
jason
2,770 views
In this experiment NaOH is standardized to find out the percent by mass of the acetic acid in a sample of vinegar.
A student had
3 answers
asked by
Sandy
2,668 views
You are measuring the concentration of Fe2 in a sample by measuring the absorbance of its complex with ferroxine. Your sample,
3 answers
asked by
Shai
2,266 views
High-pressure liquid chromatography (HPLC) is a method used in chemistry and biochemistry to purify chemical substances. The
3 answers
asked by
dakota
2,149 views
The urine excreted by an adult patient over 24 hours was collected and diluted to give 2.000L sample.
at ph 10 EDTA FORMS 1:1
7 answers
asked by
jenny
1,946 views
1. State specifically how you would make a conclusive test for an iron (III) salt.
2. Which test for iron (II) ions is
4 answers
asked by
Justin
1,912 views
The following data are for a liquid chromatographic column:
Length of packing (L) 24.7 cm Flow rate 0.313 mL/min VM 1.37 mL VS
4 answers
asked by
Kurt
1,734 views
Which test for iron(II) ions is conclusive?
3 answers
asked by
Dan
1,697 views
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