An unknown food-dye is analyzed by the method used in this experiment. Theabsorbance of 5 standard solutions is plotted vs. their concentration (molarity) and astraight line is obtained with the formula:Abs = 4.150x +0.08An unknown food-dye soluton is diluted and it's absorbance is found to be 0.65.What is the molarity of the diluted unknown, to two significant figures?Do not type units with your answer.Your Answer:

Given : Abs = 4.150x + 0.08Calculations: We know that , for straight line curve : y = mx + b where m = slope and x = concentration , b = intercept , y = absorbance Therefore, Abs = 4.150x + 0.08For concentration calculations:C = A-bslope=0.65-0.084.150=0.14

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An unknown food-dye is analyzed by the method used in this experiment. The bsorbance of 5 standard solutions is plotted vs. their concentration (molarity) and a traight line is obtained with the formula: bs 4.150x +0.08 %3D n unknown food-dye soluton is diluted and it's absorbance is found to be 0.65. That is the molarity of the diluted unknown, to two significant figures? o not type units with your answer.

An unknown food-dye is analyzed by the method used in this experiment. The bsorbance of 5 standard solutions is plotted vs. their concentration (molarity) and a traight line is obtained with the formula: bs 4.150x +0.08 %3D n unknown food-dye soluton is diluted and it's absorbance is found to be 0.65. That is the molarity of the diluted unknown, to two significant figures? o not type units with your answer.

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...

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An unknown food-dye is analyzed by the method used in this experiment. The
absorbance of 5 standard solutions is plotted vs. their concentration (molarity) and a
straight line is obtained with the formula:
Abs = 4.150x +0.08
An unknown food-dye soluton is diluted and it's absorbance is found to be 0.65.
What is the molarity of the diluted unknown, to two significant figures?
Do not type units with your answer.
Your Answer:

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Part (b) Show all work, thank you!