Homework Answers
Malachite green is an organic compound which is green in color and malachite a mineral of copper which is green and opaque in appearance.
Because of the similarity in color it is names as malachite green. It is a chloride salt of organic compound.
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Why is the green dye in this experiment called "Malachite Green"? Hint: Try looking in a...
Write the mechanism for the formation of Malachite Green from methyl benzoate. Be sure to show...
Write the mechanism for the formation of Malachite Green from methyl benzoate. Be sure to show all steps, including the loss of water. 1. 2. Write the mechanism for the formation of Crystal violet from diethyl carbonate. 3. Methyl benzoate is an ester, but is technically a carboxylate ester. Diethyl carbonate is a 4. Why is the green dye in this experiment called "Malachite Green"? Hint: Try looking in a 5. Write the balanced equation for the reaction of hydrochloric...
The purpose of this experiment of this experiment is to create Malachite green or crystal violet...
The purpose of this experiment of this experiment is to create Malachite green or crystal violet by first preparing a Gringard reagent, and then reacting it with methyl benzoate. The Gringard reagent was formed from 4-bromo-N,N-dimethylaniline. In the second part of the lab we reacted the Gringard reagent with diethyl carbonate to form crystal violet. Why would submitting a NMR sample of your dye solution (not the pure dye compound itself) be unlikely to provide a useful spectrum?
Post Lab Questions: CI MALACHITE GREEN CRYSTAL VIOLET 1. Why does the malachite green dye elute...
Post Lab Questions: CI MALACHITE GREEN CRYSTAL VIOLET 1. Why does the malachite green dye elute first? What physical properties does it have that affect it's interaction with alumina and how are those different from crystal violet? 2. Write the reaction of crystal violet with 1 equivalent of HC. 3. Why does adding HCI cause crystal violet to elute more quickly? What changes with it's physical properties and how does that property affect it's interaction with alumina?
can you please answer both of these questions. the dyes are crystal violet and malachite green...
can you please answer both of these questions. the dyes are
crystal violet and malachite green
Choose one of the two dyes prepared from this lab and write out its complete mechanism, Assume the Grignard reagent has already been formed (a) What would happen to the color of your dye if you added sodium hydroxide to the solution until the pH reached 10? Why? (b) Show a mechanism from this reaction. 1. 2.
You have conducted an experiment to try to demonstrate that growth factor receptor X protein (GFRX)...
You have conducted an experiment to try to demonstrate that growth factor receptor X protein (GFRX) and ligand Y (LY) are expressed in the same cells using immunohistochemistry (IHC). You are using the following antibodies: Primary antibodies: Goat anti-GFRX Goat anti-LY Secondary antibodies: Horse anti-goat-FITC (FITC is a green fluorochrome) Donkey anti-goat TRITC (TRITC is a red fluorochrome) As you view your experiment under the appropriate fluorescent filter sets, you show that both labels (red and green) are expressed in...
In this experiment, you will measure the rate of photosynthesis in isolated chloroplasts using the dye...
In this experiment, you will measure the rate of photosynthesis
in isolated chloroplasts using the dye 2,6-dichloroindophenol
(DPIP). The transfer of electrons during the light-dependent
reaction results in the production of H+. This H+ ion can reduce
DPIP, changing its color from blue to clear. The color can be
quantitatively measured with a spectrophotometer. However, in this
experiment, you will qualitatively analyze your data.
Write a detailed conclusion for your experiment. How did light
affect the time it took for...
Why were organisms formerly called “blue-green algae” recently moved to a different Kingdom?
Why were organisms formerly called “blue-green algae” recently moved to a different Kingdom?
Questions in photo. From the Green Synthesis and Study of a Fluorescent Natural Product experiment. Fluorescence Data: Describe the observed under the UV light in the test tube and on the filter...
Questions in photo. From the Green Synthesis and Study of a
Fluorescent Natural Product experiment.
Fluorescence Data: Describe the observed under the UV light in the test tube and on the filter paper. (e.g. color, brightness etc. fluorescent activity of each test tube of the 4-methylumbelliferone i ) Draw the structure of 4- erone under the neutral, acidic and basic conditions. For the acidic and basic conditions drawa methylumbellif resonance structure to depict a new chromophore likely responsible for its...
1. If a solution absorbed blue-green light, what color would the solution appear to be? Hint:...
1. If a solution absorbed blue-green light, what color would the solution appear to be? Hint: Table I, at the beginning of the experiment, will help you answer this one. 1. Calculate the concentration of a solution prepared by adding 15.00 mL of 2.09 ~ 10-3M KMnO4 from a buret into a 50.00 mL volumetric flask, which is then filled to the 50.00 ml graduation mark with distilled water. Hint: M 2. A linear standard curve of KMnO4 is prepared...
6. An experiment is carried out to try to distinguish between cylinders of copper, stainless steel...
6. An experiment is carried out to try to distinguish between cylinders of copper, stainless steel and brass on the basis of densities. The densities are 8.93 g/cm for copper, 7.75 g/cmº for stainless steel and 8.40 g/cm for brass. The mass of a metal cylinder is measured to be 42.00 g (4 sig figs), and its volume is measured to be 5 cm (1 sig fig). Why is it not valid to identify the cylinder as being made of...
Write the mechanism for the formation of Malachite Green from methyl benzoate. Be sure to show all steps, including the loss of water. 1. 2. Write the mechanism for the formation of Crystal violet from diethyl carbonate. 3. Methyl benzoate is an ester, but is technically a carboxylate ester. Diethyl carbonate is a 4. Why is the green dye in this experiment called "Malachite Green"? Hint: Try looking in a 5. Write the balanced equation for the reaction of hydrochloric...
Post Lab Questions: CI MALACHITE GREEN CRYSTAL VIOLET 1. Why does the malachite green dye elute first? What physical properties does it have that affect it's interaction with alumina and how are those different from crystal violet? 2. Write the reaction of crystal violet with 1 equivalent of HC. 3. Why does adding HCI cause crystal violet to elute more quickly? What changes with it's physical properties and how does that property affect it's interaction with alumina?
can you please answer both of these questions. the dyes are
crystal violet and malachite green
Choose one of the two dyes prepared from this lab and write out its complete mechanism, Assume the Grignard reagent has already been formed (a) What would happen to the color of your dye if you added sodium hydroxide to the solution until the pH reached 10? Why? (b) Show a mechanism from this reaction. 1. 2.
In this experiment, you will measure the rate of photosynthesis
in isolated chloroplasts using the dye 2,6-dichloroindophenol
(DPIP). The transfer of electrons during the light-dependent
reaction results in the production of H+. This H+ ion can reduce
DPIP, changing its color from blue to clear. The color can be
quantitatively measured with a spectrophotometer. However, in this
experiment, you will qualitatively analyze your data.
Write a detailed conclusion for your experiment. How did light
affect the time it took for...
Questions in photo. From the Green Synthesis and Study of a
Fluorescent Natural Product experiment.
Fluorescence Data: Describe the observed under the UV light in the test tube and on the filter paper. (e.g. color, brightness etc. fluorescent activity of each test tube of the 4-methylumbelliferone i ) Draw the structure of 4- erone under the neutral, acidic and basic conditions. For the acidic and basic conditions drawa methylumbellif resonance structure to depict a new chromophore likely responsible for its...
1. If a solution absorbed blue-green light, what color would the solution appear to be? Hint: Table I, at the beginning of the experiment, will help you answer this one. 1. Calculate the concentration of a solution prepared by adding 15.00 mL of 2.09 ~ 10-3M KMnO4 from a buret into a 50.00 mL volumetric flask, which is then filled to the 50.00 ml graduation mark with distilled water. Hint: M 2. A linear standard curve of KMnO4 is prepared...
6. An experiment is carried out to try to distinguish between cylinders of copper, stainless steel and brass on the basis of densities. The densities are 8.93 g/cm for copper, 7.75 g/cmº for stainless steel and 8.40 g/cm for brass. The mass of a metal cylinder is measured to be 42.00 g (4 sig figs), and its volume is measured to be 5 cm (1 sig fig). Why is it not valid to identify the cylinder as being made of...
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