is crystal violet a mordant
is crystal violet a mordant
Homework Answers
A mordant is a dye fixative substance used to set dyes on fabrics by forming complex with the dye and it can be used for intensifying stains in cell or tissue preparations.
Crystal violet is not a mordant but is a positive charge dye and can stain gram positive cell. Mordant used for the fixation of crystal violet is iodine that form crystal violet-iodine complex and used for staining gram positive bacteria.
So, crystal violet is not a mordant.
What is the purpose of the mordant? Increases the number of colonies grown during incubation Dilutes...
What is the purpose of the mordant? Increases the number of colonies grown during incubation Dilutes the sample Iodine complexes the crystal violet to the peptidoglycan layer All of the above
TABLE 1. Concentration of crystal violet versus time in the crystal violet reaction (make calculations for...
TABLE 1. Concentration of crystal violet versus time in the crystal violet reaction (make calculations for the third and fourth column and graph the results vs time) Time (min) [A] (molar conc.) In [A 1.000 0.893 0.806 0 (initiall 40.735 5 6 ーに。 0.676 0.625 0.581 0.543 0.510 0.481 0.454 0.431 0.410 -О-593 11.72 -067834 9 10 12 QUESTIONS 1) Is the reaction first-order or second-order? Explain. 2) Calculate the rate constant from the equation for the appropriate graph. 3)...
Reaction of Crystal violet with NaOH : A kinetic study
1. The formula of crystal violet is C25H30N3Cl. Write a balanced molecular equation, using this formula, for the reaction of crystal violet with NaOH. Then writethe balanced net ionic equation.2. The structure of the crystal violet cation is shown in number 1. Which atom in this structure has a 1+ formal charge? Where is located?
Half-life reaction of the crystal violet
assume that the reaction is first order in crystal violet and that, for a particular NaOH concentration, k' equals 0.048 min^-1. Use equation 3 to calculate how manyminutes it takes for half of the crystal violet to react. This is the half-life of the reaction.
how can find the concentration Experiment 3: Determination of the Rate Law - Crystal Violet and...
how
can find the concentration
Experiment 3: Determination of the Rate Law - Crystal Violet and Sodium Hydroxide Trial 1 Concentration of crystal violet (M) 0.000100 M Concentration of sodium hydroxide (M) 0.0200 M Time (min) Absorbance Concentration (crystal violet] In (crystal violet) 1/[crystal violet) (use the Molar Extinction Coefficient of 87,000) 3 0.479 4 0.429 I 5 0.376 6 0.326 7 0.296 8 0.267 9 0.241 10 0.215 E
In the experiment we used the absorbance of crystal violet vs time to construct graphs to...
In the experiment we used the absorbance of crystal violet vs time to construct graphs to determine the reaction order with respect to crystal violet. Useing Beer's Law (A=abc) explain why the absorbance of crystal violet can be substituted for reactant concentration on the graphs. (in detail) thank you!
Why do we use absorbance to monitor the reaction rate? (in an experiment with crystal violet)....
Why do we use absorbance to monitor the reaction rate? (in an experiment with crystal violet). Is the correct answer a, b, c, or d? a. Crystal violet is poisonous and cannot be titrated b. Spectrophotometery is an inexpensive method c. Crystal violet and basic phenolphthalein are colored solutions d. All of the above
1. The molar mass of the crystal violet powder is 407.99 g/mol. How many grams of...
1. The molar mass of the crystal violet powder is 407.99 g/mol. How many grams of crystal violet are needed to prepare 2.00 L solution with a concentration of 3.00 x 10'M? Mass of Crystal Violet (grams):
A 1.0x10⁻⁵ solution of crystal violet has an absorbance of 0.563. Into a new cuvette, 2,000µL...
A 1.0x10⁻⁵ solution of crystal violet has an absorbance of 0.563. Into a new cuvette, 2,000µL of the crystal violet was added to 1,500 µL of distilled water. What is the absorbance of this new solution?
Question 1 Which electron microscopes type offers higher resolution? Atomic force microscopy. b. Scanning electron microscopy....
Question 1 Which electron microscopes type offers higher resolution? Atomic force microscopy. b. Scanning electron microscopy. Phase contrast microscopy. Transmission electron microscopy. A Moving to the next question prevents changes to this answer. Type here to search Which of these statements is correct for gram staining? Which of these statements is correct for gram staining? Carbolfuchsin-mordant-alcohol-malachite green. Ob Methylene blue-mordant-alcohol-crystal violet. Carbolfuchsin-alcohol-methylene blue. d Crystal violet-alcohol-mordant-methylene blue. Crystal violet-mordant-alcohol-safranin.
TABLE 1. Concentration of crystal violet versus time in the crystal violet reaction (make calculations for the third and fourth column and graph the results vs time) Time (min) [A] (molar conc.) In [A 1.000 0.893 0.806 0 (initiall 40.735 5 6 ーに。 0.676 0.625 0.581 0.543 0.510 0.481 0.454 0.431 0.410 -О-593 11.72 -067834 9 10 12 QUESTIONS 1) Is the reaction first-order or second-order? Explain. 2) Calculate the rate constant from the equation for the appropriate graph. 3)...
how
can find the concentration
Experiment 3: Determination of the Rate Law - Crystal Violet and Sodium Hydroxide Trial 1 Concentration of crystal violet (M) 0.000100 M Concentration of sodium hydroxide (M) 0.0200 M Time (min) Absorbance Concentration (crystal violet] In (crystal violet) 1/[crystal violet) (use the Molar Extinction Coefficient of 87,000) 3 0.479 4 0.429 I 5 0.376 6 0.326 7 0.296 8 0.267 9 0.241 10 0.215 E
1. The molar mass of the crystal violet powder is 407.99 g/mol. How many grams of crystal violet are needed to prepare 2.00 L solution with a concentration of 3.00 x 10'M? Mass of Crystal Violet (grams):
Question 1 Which electron microscopes type offers higher resolution? Atomic force microscopy. b. Scanning electron microscopy. Phase contrast microscopy. Transmission electron microscopy. A Moving to the next question prevents changes to this answer. Type here to search Which of these statements is correct for gram staining? Which of these statements is correct for gram staining? Carbolfuchsin-mordant-alcohol-malachite green. Ob Methylene blue-mordant-alcohol-crystal violet. Carbolfuchsin-alcohol-methylene blue. d Crystal violet-alcohol-mordant-methylene blue. Crystal violet-mordant-alcohol-safranin.
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