6. Provide a reaction to identify aldehydes and ketones, followed by at least two important reactions to differentiate aldehydes and ketones with examples and explain their reaction mechanism
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for the lab of
SPECTROPHOTOMETRIC DETERMINATION OF IRON USING 1,10
PHENANTHROLINE
%Fe= c unknown(mol/L) X 1L X 80 X Molarmass Fe(g/mol) X
100%
Mass of Sample (g)
I am confused about how to find the concentration of the
unknown
In this method equal volumes of the unknown are pipetted into
several volumetric flasks. Then increasing volumes of the standard
are added to each flask and each is diluted to the same final
volume. Every flask now contains the same concentration of unknown
and different concentrations of standard. (Remember that the
standard is the same substance as the unknown). For each flask, a
measurement of analytical signal is then made. The equation of the
line is y= mx + b, where the x-intercept (the concentration of the
unknown) is calculated from the expression x=−b/m
** if you need more information let me know
In: Chemistry
Find one example of a Maillard reaction. Describe what happens during the reaction. Where are the ingredients required coming from? What conditions are required? What is the effect produced?
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1) Calculate the change internal energy (Delta E) for a system that is giving off 32.6 kJ of heat and surroundings are performing 975 J of work on the system.
2) Calculate the change in internal energy (Delta E) for a system that is giving off 25.0 kJ of heat and is changing from 12.00 L to 6.00 L in volume at 1.50 atm pressure. (Remember that 101.3 J = 1 L?atm)
Show all work please
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Does the Maillard reaction create any compounds that cause health concerns? If so, what kind of compounds raise what sort of concerns?
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d) What components do proteins bring to the browning process that aren’t available during simple caramelization of a carbohydrate?
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With names and structures, enzyme name, intermediate names, cofactor name (but not their structure) describe the anaplerotic reaction of the Krebs cycle. Describe the regulation of the enzyme, and the rationale behind this scheme
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(a) What is the magnitude of the angular momentum for an ? = 30
electron?
? J
In: Chemistry
In: Chemistry
1) what class of organic compunds does the carbon-containing reactant in the reaction above belong to CH3+CH2+CH2+(C=O) +CH3 +H2 arrows both ways H+? There is a bond in between C and O I put it in brackets and there is a bond between C and CH3?
2) Give the IUPAC name for carbon-containing reactant in the reaction above?
3) Give the product of this reduction/hydrogenation reaction. What is IUPAC name of the product?
Explain why aldehyde like ethanol and paropanol are all soluble in water, but heptanal and octanal are not. In the response include discussion of intermolecular attractive forces.
Could you please help me. I am lost with the answers
In: Chemistry
Part A) Electrolysis is performed on a mixture of CuBr(l), AgBr(l), MgBr2(l), and NiBr2(l). Which of the following is produced at the cathode?
| A) Cu(s) | |||||||||
| B) Ag(s) | |||||||||
| C) Mg(s) | |||||||||
|
D) Ni(s) Part B)You are given some ferrous iodide, FeI2 , and are asked to extract the iron through electrolysis. What can be said about the merits of molten versus aqueous FeI2 ? You are given some ferrous iodide, \rm FeI_2, and are asked to extract the iron through electrolysis. What can be said about the merits of molten versus aqueous \rm FeI_2?
|
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3H2(g)+N2(g)?2NH3(g)
How many grams of NH3 can be produced from 3.23mol of N2 and excess H2.
How many grams of H2 are needed to produce 13.85g of NH3?
How many molecules (not moles) of NH3 are produced from 6.68
In: Chemistry
At equilibrium, the concentrations in this system were found to be [N2]=[O2]=0.100 M and [NO]=0.500 M.
N2(g) + O2 (g) <----> 2NO(g)
If more NO is added, bringing its concentration to 0.800 M, what will the final concentration of NO be after equilibrium is re-established?
_____M
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What are the antibiotic resistant genes for doxycycline? If possible, give the gene sequence.
In: Chemistry