What is interference, as defined by the procedure for this experiment in your la

Question

What is interference, as defined by the procedure for this experiment in your laboratory manual? An Ice Blue Raspberry Koolaid package is labeled to contain 4.8 g of powder, which will make 2 quarts of beverage. To make l(X).() mL of solution having the same concentration, how much powder should you weigh out? What variables are plotted on the x and y axes in a Beer's Law graph? What do you obtain from the slope of the graph? Preparation of four calibration graphs for two species (not food dyes!) that have overlapping spectra produces the following set of extinction coefficients. Analysis of an unknown solution produces absorbance values of: What are the molar concentrations of the unknown A and B ? (Be sure to show all your work; no credit will be given otherwise.)

Explanation / Answer

Ans 1) Interference is a phenomenon in which two waves superpose to form a resultant wave of greater, lower or the same amplitude, It occurs in the experiment when light passes through multiple slits.

Ans 2) the concentration is given by equation as:

C=number of moles/volume

let M be the molecular weight of the powder

C1= (4.8/M)/1892 (2 quarts=1892ml)

let w be the mass of powder needed

C2= (w/M)/100

As the concentration remains same

C1=C2

(4.8/M)/1892=(w/M)/100

w=0.253 gm

Ans 3) y axis= Absorbance

x axis = concentration

slope = product of molar absorptivity constant and the path length

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