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What is the molar absorptivity of crystal violet?
The molar absorptivity of crystal violet can be determined using Beer's Law. Beer's Law is A=E*c*l where A is absorbance, E is the molar absorptivity, C is the concentration of the crystal violet, and l is the path length. Path length is how long the light has to travel through the solution. If you can find the absorbance of a certain concentration by using a spectrophotometer, where the path length is 1 cm, then you know all the variables and are able to solve for the molar absorptivity. For example, the measured absorbance of 2.5x10^-5 M CV (crystal violet) is 1.64 with a path length of 1 cm. This means 1.64=E*(2.5x10^-5)*1 E=1.64/(2.5x10^-5) E=65600 Happy Chemistry!
What is the extinction coefficient of CuSO4 and how does it impact the measurement of its absorbance in a solution?
The extinction coefficient of CuSO4 is a measure of how strongly it absorbs light at a specific wavelength. A higher extinction coefficient means that the substance absorbs more light. This impacts the measurement of its absorbance in a solution because a higher extinction coefficient will result in a higher absorbance reading, indicating a higher concentration of CuSO4 in the solution.
Does a molecule have the same extinction coefficient at all wavelengths, and if not, why does it vary across different wavelengths?
No, a molecule does not have the same extinction coefficient at all wavelengths. The extinction coefficient varies across different wavelengths because different wavelengths of light interact with the molecule in different ways, leading to varying levels of absorption and scattering.
Does crystal violet have a color?
Yes, crystal violet is a triarylmethane dye that appears as a deep purple color when dissolved in water or other solvents.
How would you calculate Extinction coefficient of NADH at 260nm?
The extinction coefficient of NADH at 260nm can be calculated using the Beer-Lambert Law. It is typically around 6220 M^-1cm^-1 at 260nm. The formula is A = εlc, where A is the absorbance, ε is the extinction coefficient, l is the path length of the cuvette (usually 1cm), and c is the concentration in mol/L.
What is the charge of crystal violet?
The charge of crystal violet is positive.
What is the molar absorptivity of crystal violet?
The molar absorptivity of crystal violet can be determined using Beer's Law. Beer's Law is A=E*c*l where A is absorbance, E is the molar absorptivity, C is the concentration of the crystal violet, and l is the path length. Path length is how long the light has to travel through the solution. If you can find the absorbance of a certain concentration by using a spectrophotometer, where the path length is 1 cm, then you know all the variables and are able to solve for the molar absorptivity. For example, the measured absorbance of 2.5x10^-5 M CV (crystal violet) is 1.64 with a path length of 1 cm. This means 1.64=E*(2.5x10^-5)*1 E=1.64/(2.5x10^-5) E=65600 Happy Chemistry!
What is the extinction coefficient of CuSO4 and how does it impact the measurement of its absorbance in a solution?
The extinction coefficient of CuSO4 is a measure of how strongly it absorbs light at a specific wavelength. A higher extinction coefficient means that the substance absorbs more light. This impacts the measurement of its absorbance in a solution because a higher extinction coefficient will result in a higher absorbance reading, indicating a higher concentration of CuSO4 in the solution.
What is the molar extinction coefficient of Phenol red at 610NM?
Molar extinction coefficient of phenol ret at 610nM is 22 mM-1 cm-1
Is the crystal violet test result positive or negative?
The crystal violet test result is positive.
What is the secondary stain in gram stain procedure?
It is crystal violet & stains all cells purple.
What is the significance of the GFP extinction coefficient in determining the efficiency of fluorescence measurements?
The GFP extinction coefficient is important in determining how efficiently a substance absorbs light and emits fluorescence. A higher extinction coefficient means better absorption of light, leading to more accurate and sensitive fluorescence measurements.
How can one calculate the extinction coefficient of a protein?
To calculate the extinction coefficient of a protein, you can use the formula: Extinction coefficient (A11cm) / (number of amino acids x molecular weight). A11cm is the absorbance at 280 nm for a 1 cm path length. This value can be determined experimentally using a spectrophotometer.
How do we determine molar extinction coefficient using standard plots?
In the beginning, no you need not cull the special coefficient
What is molar extinction coefficient of bsa?
The molar extinction coefficient of BSA (bovine serum albumin) is approximately 43,824 M^(-1)cm^(-1) at a wavelength of 280 nm. This value is commonly used to quantify the concentration of BSA in a solution based on its absorbance at 280 nm.
Does a molecule have the same extinction coefficient at all wavelengths, and if not, why does it vary across different wavelengths?
No, a molecule does not have the same extinction coefficient at all wavelengths. The extinction coefficient varies across different wavelengths because different wavelengths of light interact with the molecule in different ways, leading to varying levels of absorption and scattering.
What does crystal violet bind to in biological systems?
Crystal violet binds to nucleic acids, specifically DNA, in biological systems.
