question 3 ### Calibration Curve and Calculating Molar Concentration**Graph Explanation:**The graph provided is a calibration curve that demonstrates the relationship between the absorbance and molar concentration of a solution. The x-axis represents the concentration in molarity (M), ranging from 0 to 0.00025 M. The y-axis represents the absorbance, ranging from 0 to 0.6. A linear relationship is observed, represented by the equation \( y = 2755x \), where \( y \) is the absorbance and \( x \) is the concentration. The graph shows a straight line that passes through multiple data points, indicating a strong correlation between absorbance and concentration.**Question:**Using the calibration curve, calculate the molar concentration for a solution with a measured absorbance of 0.185.**Calculation Formula:**\[ \text{Concentration} = \frac{\text{Absorbance}}{\text{Slope}} \]Given the slope from the graph equation (\( y = 2755x \)), we can calculate the concentration as follows:\[ x = \frac{y}{2755} \]Using these details, fill in the equation below:\[ \text{Concentration} = \boxed{} \times 10^{\boxed{}} \text{ M} \]

From Beer-Lambert’s law, at a certain wavelength, absorbance can be expressed as:

Answered: e molar concentration for a solution…

e molar concentration for a solution with a measured

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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» Significant Figure Rules 01 >> 02 >> 03 >> 04 >> 05 >> All nonzero digits are significant. Zeros that appear between other nonzero digits are always significant. Zeros that appear in front of all of the nonzero digits are called left-end zeros. Left-end zeros are never significant. Zeros that appear after all nonzero digits are called right-end zeros. Right-end zeros in a number that locks a decimal point are not significant. ▬▬▬ 美銀銀時 ☐☐ Right-end zeros in a number with a decimal point are significant. This is true whether the zeros occur before or ofter the decimal point. 237 has three significant figures. 1.897 has four significant figures. 39,004 has five significant figures. 5.02 has three significant figures. 0.008 has one significant figure. 0.000416 has three significant figures. 140 has two significant figures. 75,210 has four significant figures. 620.0 has four significant figures. 19.000 has five significant figures. For multiplication and division problems, the answer…
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