In this experiment, a calibration curve, often called a Beer\'s Law plot, will b

Question

In this experiment, a calibration curve, often called a Beer's Law plot, will be made. A calibration curve should have which of the following attributes? (Select all that apply.)

Absorbance is plotted on the x-axis.

Concentration is plotted on the x-axis.

The x- and y-axes should be labeled with units as well as quantities.

Concentration is plotted on the y-axis.

In a hand-plotted graph, individual lines should be drawn between adjacent points.

Absorbance is plotted on the y-axis.

The command for getting an equation is "Add Trendline" in Microsoft Excel.

Explanation / Answer

we know that

Beer Lambert law is given by

A = e x c x l

here

A = absorbance

e = absorptivity or molar extincation coefficient

c = concentration

l = path length

now

the beer lamber plot is given by

A Vs C

that is

Absornbace Vs concentration

here

Absorbance is on y-axis

and

COncentration is on X-axis

also

the x and y axes should be labeled with units as well as quantities

and finally

The command for getting an equation is "Add Trendline" in Microsoft Excel.

so

the correct options are

1) Concentration is plotted on the x-axis.

2) The x- and y-axes should be labeled with units as well as quantities

3) Absorbance is plotted on the y-axis.

4) The command for getting an equation is "Add Trendline" in Microsoft Excel.

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