Finding Beer's Law Slope: Homework Help

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To find the Beer's Law slope from a graph of Absorbance versus Concentration, the slope of the trendline obtained from Excel, which is 228.19, is indeed the value to use for determining concentrations of other absorbances. It is important to ensure that the x and y variables are correctly assigned in the graph. Concerns about the slope being too high are noted, but it is valid as long as the data is accurate. This slope will be essential for future calculations in the lab. Accurate interpretation of the graph is crucial for reliable results.
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Homework Statement


I made a graph of Absorbance vs. Concentration from data I got in the lab.
I graphed it and now am trying to figure out how to find the slope of the curve.
It's supposed to be a Beer's Law calibration curve.



Homework Equations





The Attempt at a Solution


I used Excel and got y = 228.19x + .0369 as the trendline.
Would 228.19 be the Beer's Law slope I need to use to find the concentrations of other absorbances later in the lab? It seems too high, but I really need feedback fast, please. Thank you.
 
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Yes, it's the slope. Make sure you have chosen x and y correctly, though.
 

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