M Chapter 9-Techniques to [ Chapter 9-Techniques × e A Student Finds That 27 60

Question

M Chapter 9-Techniques to [ Chapter 9-Techniques × e A Student Finds That 27 60 | what does the y in y=mx + | + LTX v mycourses purdue.edu/bbcswebdav/pid-10120423 dt content-rid-44799740 1/courses/1810 mtowns 1/Chapte %209%20-%20Tec lU Absorbance versus Concentration F, D, & C Red #40 0.6 0.5 0.3 0.2 0.1 y = 10735x + 0.0612 R2-0.9967 0.00E +00 1.00E-05 2.00E-05 3.00E-05 4.00E-05 5.00E-05 6.00E-05 Concentration (M) 5. A student's data for the titration of HC with NaOH is shown in the table below 8:10 PM Type here to search 11/5/2017

Explanation / Answer

trend line as given the curve absorbance (y)= 10735*concentration (x)+0.0672

y refers to absorbance and x refers to concentration in M.

slope is coefficient of x= 10735 /M

y intercept is obtained by putting x=0, hence y=0.0612 y intercept

when absorbance A= 0.420 = Concentration*10735+0.0612

concentration = (0.42-0.0612)/10735 M=3.34*10-5 M

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