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?
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A 1.0x10⁻⁵ solution of crystal violet has an absorbance of
0.563. Into a new cuvette, 2,000µL...
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!
A student measures the absorbance of a solution containing FeSON on using a spectrophotometer. The cuvette...
A student measures the absorbance of a solution containing FeSON on using a spectrophotometer. The cuvette used by the student has two frosted walls and two transparent walls. The student properly orients the cuvette so that the path of the light goes through the transparent sides of the cuvette when calibrating the spectrophotometer. How will the measured absorbance of the FeSCN be affected if the student incorrectly orients the cuvette so that the path of the light is through the...
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
Question 1 -- /1 The reaction described in the manual involves crystal violet which is purple...
Question 1 -- /1 The reaction described in the manual involves crystal violet which is purple colored in solution. Select the correct observations as the reaction proceeds. a As the reaction proceeds, the transmittance will decrease. As the reaction proceeds, the transmittance will increase. As the reaction proceeds, the purple color will become more pale. As the reaction proceeds, the purple color will become more intense. Absorption takes place here. The change in color of a solution can be measured...
The rate of the crystal violet/NaOH reaction is given by the following generalized rate law: Rate...
The rate of the crystal violet/NaOH reaction is given by the following generalized rate law: Rate = k’[CV+]y where k’ is the pseudo rate constant defined by k’ = k [OH-]x , where k is the actual rate constant The actual rate constant can be calculated using the pseudo rate constant and the [OH-] present in the reaction mixture. If the reaction mixture is prepared by mixing 5.0 mL of 1.00 x 10-4 M crystal violet solution with 5.0 mL...
if 5ml of 3.0 x10^-5 M crystal violet solution is mixed with 2ml of 0.1M of...
if 5ml of 3.0 x10^-5 M crystal violet solution is mixed with 2ml of 0.1M of NaOH, what is the concentration of crystal violet in this solution? CV+ (aq ) + OH− (aq) = CVOH (aq )
A solution is prepared by mixing 10.0 mL of 1.0*10^-4 M crystal violet with 10.0 mL...
A solution is prepared by mixing 10.0 mL of 1.0*10^-4 M crystal violet with 10.0 mL of 0.10M sodium hydroxide. The mixture is diluted with deionized water to a final volume of 100.0 mL. Which compound will be the limiting reagent in the chemical reaction between the crystal violet and the sodium hydroxide?
If 2.0 mL of distilled water is added to 3.0 mL of a 0.150 M solution...
If 2.0 mL of distilled water is added to 3.0 mL of a 0.150 M solution of CoCly, what is the concentration of the resulting solution? Show your work. (a) What is a calibration curve? (b) Why do we use a calibration curve to determine the concentration of our unknown 5. A colored sample with a concentration of 0.160 M has an absorbance of 0.80 in a 1.0 cm path length cuvette. (a) What would be the absorbance expected if...
DATA I. Determining the Effect of Temperature lO 5 l.om Solution concentrations: [crystal violet]- [NaoH] =...
DATA I. Determining the Effect of Temperature lO 5 l.om Solution concentrations: [crystal violet]- [NaoH] = Ice Bath Temperature O.5℃ Reaction time 3:15 wn (trial 1) 3:27 trial2) Reaction time 4 sec-(trial 1) /s--(trial2) I. Determining the Rate Law for the reaction of NaOH and crystal violet. Hot Water Bath Temperature 55 C
If the initial amount of Fe(NO3)3 transferred to the cuvette is 0.045 mol, and the absorbance...
If the initial amount of Fe(NO3)3 transferred to the cuvette is 0.045 mol, and the absorbance measurements indicate that 0.018 mol of FeSCN2+ are present at equilibrium, what must be [Fe3+] at equilibrium? The total volume of solution in the cuvette is 3.329 mL. Provide your response to two digits after the decimal.
A student measures the absorbance of a solution containing FeSON on using a spectrophotometer. The cuvette used by the student has two frosted walls and two transparent walls. The student properly orients the cuvette so that the path of the light goes through the transparent sides of the cuvette when calibrating the spectrophotometer. How will the measured absorbance of the FeSCN be affected if the student incorrectly orients the cuvette so that the path of the light is through the...
Question 1 -- /1 The reaction described in the manual involves crystal violet which is purple colored in solution. Select the correct observations as the reaction proceeds. a As the reaction proceeds, the transmittance will decrease. As the reaction proceeds, the transmittance will increase. As the reaction proceeds, the purple color will become more pale. As the reaction proceeds, the purple color will become more intense. Absorption takes place here. The change in color of a solution can be measured...
If 2.0 mL of distilled water is added to 3.0 mL of a 0.150 M solution of CoCly, what is the concentration of the resulting solution? Show your work. (a) What is a calibration curve? (b) Why do we use a calibration curve to determine the concentration of our unknown 5. A colored sample with a concentration of 0.160 M has an absorbance of 0.80 in a 1.0 cm path length cuvette. (a) What would be the absorbance expected if...
DATA I. Determining the Effect of Temperature lO 5 l.om Solution concentrations: [crystal violet]- [NaoH] = Ice Bath Temperature O.5℃ Reaction time 3:15 wn (trial 1) 3:27 trial2) Reaction time 4 sec-(trial 1) /s--(trial2) I. Determining the Rate Law for the reaction of NaOH and crystal violet. Hot Water Bath Temperature 55 C
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