Question

2K₂Cr₂O₇ + 8H₂SO₄ + 3C₂H₅OH = 2Cr₂(SO₄)₃ + 2K₂SO₄ + 3CH₃COOH + 11H₂O

A=ebc

A=absorbance

e=molar absorptivity

b=path length of light through the cell

c=concentration of solution in moles per liter

A1/A2=C1/C2

A1= absorbance of known solution

c1=concentration of known solution

A2=absorbance of unknown solution

C2=concentration of unknown.

0.25MG ethanol = 0.10%BAC

Operating wavelength : 441 nm
Absorbance of solution 1 - Standard Dichromate-H₂O : 0.533 a.u.
Absorbance of solution 2 - Standard Dichromate-Ethanol (Standard) : 0.422 a.u.
Absorbance of solution 3 - Standard Dichromate-Ethanol (Defendant) : 0.365 a.u.
Mass of dichromate in Solution 1 : 6.25 mg

II. Calculated data:

Enter the following calculated data from the calibration of the Breath-Analyzer:

Mass of dichromate in Solution 2 : mg

Mass of dichromate consumed : mg.

Number of moles of dichromate consumed : mmoles

Number of moles of ethanol consumed : mmoles

Mass of ethanol consumed : mg

%BAC of sample :

This was all I have from the question what more do I need to provide?

Answer 1