I. Why uld the y-intercept of any Beer\'s Plot equal zero? Consider the experime

Question

I. Why uld the y-intercept of any Beer's Plot equal zero? Consider the experimental set-up and answer from a conceptual perspective. Consi if the stock solution was made improperly in the procedure, such that the flask was filled to just above the line. vo How would this affect the slope of graph? Would it increase, or decrease, or stay the same? Explain. b How would this affect the concentration determined for your unknown sample? Would reported unknown concentration be incorrectly high, or incorrectly low, or stay the same? Explain.

Explanation / Answer

1. Beers law

A = elC

A = absorbance

e = molar absorptivity

l = path length

C= conc of solution

slope intercept form is y= mx+ k

here in beers law there is no constant (k) which is y intercept

therefore straight lne should pass through origin without any y- intercept

2.a) As conc and path length remains same it will not affect slope (m) = el

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