CHM 1023. The figure below shows a Beer's Law plot for the absorbance of 5 different known solutionsof crystal violet along with the equation for the linear regression line (trend line).a. For the equation of the line, what do"x" and "y" each represent?X:y:Absorbance0.7000.6000.5000.4000.3000.2000.1000.000Beer's Law Plot for Crystal Violety = 6.66E+04x-1.51E-02R²=9.99E-010.00E+00 2.00E-06 4.00E-06 6.00E-06 8.00E-06 1.00E-05 1.20E-05[crystal violet] (M)b. A sample containing an unknown concentration of crystal violet has an absorbance of0.231. Calculate its crystal violet concentration using the linear regression equation inthe figure. Show your calculation.

The given equation of regression is y=6.66×104x-1.51×10-2

3. The figure below shows a Beer's Law plot for the absorbance of 5 different known solutions of crystal violet along with the equation for the linear regression line (trend line). a. For the equation of the line, what do "x" and "y" each represent? X: y: Absorbance 0.700 0.600 0.500 0.400 0.300 0.200 0.100 0.000 CHIVE 102 Beer's Law Plot for Crystal Violet y=6.66E+04x-1.51E-02 R²=9.99E-01 0.00E+00 2.00E-06 4.00E-06 6.00E-06 8.00E-06 1.00E-05 1.20E-05 [crystal violet] (M) b. A sample containing an unknown concentration of crystal violet has an absorbance of 0.231. Calculate its crystal violet concentration using the linear regression equation in the figure. Show your calculation.

3. The figure below shows a Beer's Law plot for the absorbance of 5 different known solutions of crystal violet along with the equation for the linear regression line (trend line). a. For the equation of the line, what do "x" and "y" each represent? X: y: Absorbance 0.700 0.600 0.500 0.400 0.300 0.200 0.100 0.000 CHIVE 102 Beer's Law Plot for Crystal Violet y=6.66E+04x-1.51E-02 R²=9.99E-01 0.00E+00 2.00E-06 4.00E-06 6.00E-06 8.00E-06 1.00E-05 1.20E-05 [crystal violet] (M) b. A sample containing an unknown concentration of crystal violet has an absorbance of 0.231. Calculate its crystal violet concentration using the linear regression equation in the figure. Show your calculation.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Similar questions

When using a Gran plot to determine the equivalence point, we must use the data after the equivalence point. Group of answer choices True False
Write the Ksp expression for the sparingly soluble compound lead bromide, PbBr₂. Ksp = A₂ A³ A₂ If either the numerator or denominator is 1, please enter 1
In the laboratory, a general chemistry student measured the pH of a 0.392 M aqueous solution of hydrocyanic acid to be 4.920. Use the information she obtained to determine the Ka for this acid. Ka(experiment)
The measured Ka value is 1.62 x 10^-5. Please help to solve questions 3 and 4. Thanks again
You are viewing Sonjae Wallace's screen REC View Options Q8: Level 3+ (Unit 13, L.G. 11) Given the following information: O1 + H,0 = HOI + OH H,0 = %H;0* + ½OH K, = 5 x 104 K2 = 1 x 107 What is the value of K for the rxn HOI + H,0 = 01+ H,0*? A. 2 x 10-11 B. 5 x 10 11 C. 2x 10-4 D. 4 x 104 To: Type P Type here to search a brt %23 * 4 5 Q Y. LL M alt alt ctri
Below is visible light spectrum and the UV-Vis spectrum for a cobalt (II) solution. Determine the color of a cobalt (II) solution? Epsilon is molar absorptivity and lambda is wavelength in nanometers. 740-625 625-590 590-565 565-520 520-500 500-435 435-380 Wavelength (nanometers) Co 3. 300 400 500 600 700 800 A. pink to violet B. Orange to yellow C. Blue to ligght blue D Green to yellow
QUESTION 2 One statement is not true regarding the determination of pka of Bromothymol Blue indicator by spectrophotometry. A. В. The absorption spectrum is the plot of absorbance against light wavelength and recorded by passing a light through According to Beer-Lambert law, the intensity of light absorbed or transmitted is directly proportional to a solution medium the color of the indicator in the solution C. D. The Bromothymol Blue indicator solution is a weak acid composed of The color of Bromothymol Blue indicator unionized acid and ionic conjugate base changes by changing the pH of the solution medium components Select answer
Question 24 This problem requires a numerical answer. Type your answer into the box provided. Do not include any units. Report the answer to two decimal places. If Canvas rounds to fewer that is ok, but you should not do so independently. 5.00 mL of 0.100o M ammonia (NH3, K, = 1.8x10 5) is titráted with 0.100 M HNO3. Calculate the %3D pH after 1.00 mL of HNO3 is added.
Determine the concentration of your prepared Iron (III) Salicylate Dianion solution (pure ASA) in the 10.0 mL of 1.0 M NaOH in mg/mL (Part D) using Beer's Law plot. Hint:You need to use the measured absorbance reading of your prepared Iron (III) dianion (absorbance reading: 0.83). Information from the plot: Standard: Concentration ofASA in Standards (mg/mL) A: 0.18 B: 0.14 C: 0.10 D: 0.070 E: 0.040 Mass of salicylic acid (g) 0.17g Volume of acetic anhydride (mL) 0.34mL Mass of filter paper (g) 0.35gMass of "impure" ASA and filter paper (g) 0.49g Mass of prepared "impure" ASA (g) 0.14g Melting point range of prepared ASA (°C) 20.9 °C Melting point range of standardASA (°C) 18.5°C Percent purity: 28.57% Percentage yield: 66.7% Chemical equation: C7H6O3 + C4H6O3pure ASA knowing that two consecutive dilutions were done to prepare the solution. Show all of your work.C9H8O4 + C2H4O2 b) Then, calculate the mass (in mg) of
please give calculation as well. Calculate the pH value of each of the solutions in tubes 1-9 using the Henderson-Hasselbalch equation (H-H eqn).Determine the pl of casein. Compare your experimental values with those found in the literature. Biomolecules. Thank you! The protein is casein.