Question
In: Physics
What is the wavelength of the maximum absorbance of the nanoparticles? To what colour of visible...
What is the wavelength of the maximum absorbance of the nanoparticles? To what colour of visible light does this correspond? Estimate a size for the gold nanoparticles formed.
Solutions
genius_generous answered 2 years agoRelated Solutions
For your indicator, what is the wavelength of maximum absorbance for the pH < 4.00 solution?...
For your indicator, what is the wavelength of maximum absorbance
for the pH < 4.00 solution? What is the wavelength of maximum
absorbance for the pH > 10.00 solution? What colors correspond
to these wavelengths? How do the observed colors of these solutions
relate to the colors at their absorbance maxima? This is the
procedure:
http://www3.chem21labs.com/labfiles/UofC_GL18_Lab.pdf?rf=5204
For your indicator, what is the wavelength of maximum absorbance for the pH < 4.00 solution?...
For your indicator, what is the wavelength of maximum absorbance
for the pH < 4.00 solution? What is the wavelength of maximum
absorbance for the pH > 10.00 solution? What colors correspond
to these wavelengths? How do the observed colors of these solutions
relate to the colors at their absorbance maxima?
This is the procedure:
http://www3.chem21labs.com/labfiles/UofC_GL18_Lab.pdf?rf=5204
Guanosine (Molar Mass = 151.13 g/mol) has a maximum absorbance of 275nm. At the maximum wavelength...
Guanosine (Molar Mass = 151.13 g/mol) has a maximum absorbance
of 275nm. At the maximum wavelength the molar absorption
coefficient is 8400 M^-1 cm^-1 and the path langth is 1.00 cm.
Using spectrophotometric data provided, find the mass of Guanosine
in this 25.0mL solution with a max A275 = 0.70. (The 275 is at the
bottom of A. )(Example, A^275 , but flipped to the bottom)
A. Determine the maximum absorbance wavelength for the dye (Amaranth) in nm (use internet or ask...
A. Determine the maximum absorbance wavelength for the dye
(Amaranth) in nm (use internet or ask me for alternative method if
you don't have regular access) and in a few sentences explain what
is happening when inside the instrument when an absorbance spectra
is being acquired. What are the units on the y-axis (ordinate) of
the graph? What would be the problem with using a acrylic cell when
the sample absorbs in the UV region of the EM spectrum? Explain...
Substance H has maximum absorbance at 550 nm; Substance M has maximum absorbance at 650 nm....
Substance H has maximum absorbance at 550 nm; Substance
M has maximum absorbance at
650 nm. A standard solution of H has a concentration 74.2 ppm and
an absorbance of 0.972 at
500 nm and an absorbance of 0.276 at 650 nm. A standard solution of
M has a concentration
of 35.9 ppm and an absorbance of 0.102 at 500 nm and of 0.564 at
650 nm. A sample solution
that is a mixture of H and M has an...
In visible light, which color has the longest wavelength?' Are Microwave, Visible Light, Gamma rays in...
In visible light, which color has the longest
wavelength?'
Are Microwave, Visible Light, Gamma rays in order of lowest to
highest energy?
are Radio broadcast, cell phone and GPS examples of technologies
that uses radio waves
Is there a relationship between absorbance and polarity or wavelength and polarity? For example, chlorophyll is...
Is there a relationship between absorbance and polarity or
wavelength and polarity? For example, chlorophyll is more polar
than carotene and chlorophyll has higher lambda max of 661 than
carotene with 449 lambda max.
1. what is the best wavelength to use to examine the smallest visible samples? Why? 2....
1. what is the best wavelength to use to examine the smallest
visible samples? Why?
2. If the resolution of an FTIR depends on the distance the
mirror travels, why are relatively long moving distances such as 2
or 4 cm not used? What is the trade-off?
3. Which of the three contributing factors to band broadening in
chromatography is independend of the flow rate? Explain why.
What problems, in terms of wavelength sensitivity, explain colour blindness? Stereoscopic vision is necessary to tell...
What problems, in terms of wavelength sensitivity,
explain colour blindness?
Stereoscopic vision is necessary to tell whether a body
is rotating or just changing shape.
a. Explain why the right eye needs the input from the
left eye to distinguish between the different paths from A to A1-
A2.
what is the effect of pH on fluorescence intensity and wavelength maximum for fluorescein
what is the effect of pH on fluorescence intensity and
wavelength maximum for fluorescein
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