The absorbance of an unknown dye solution is measured to be 1.06 by aspectrometer. The calibration plot of the spectrometer is provided below.What is the molar concentration of the unknown sample (in mole L)?Absorbance vs. Molarity18y3 67024x-0.034316141210.80.60.40.2010.20.000005 000010000015Concentration of solutions, mol/L0.000020.000025 0000030 163e-5O 2.35e-60 1630 235Absorbance

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What is the molar concentration of the unknown sample (in mole L)?

Principles of Instrumental Analysis

7th Edition

ISBN:9781305577213

Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Publisher:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Chapter1: Introduction

Section: Chapter Questions

Problem 1.9QAP

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Concept explainers

Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.

Question

The absorbance of an unknown dye solution is measured to be 1.06 by a
spectrometer. The calibration plot of the spectrometer is provided below.
What is the molar concentration of the unknown sample (in mole L)?
Absorbance vs. Molarity
18
y3 67024x-0.0343
16
14
12
1
0.8
0.6
0.4
0.2
01
0.2
0.000005 00001
0000015
Concentration of solutions, mol/L
0.00002
0.000025 000003
0 163e-5
O 2.35e-6
0 163
0 235
Absorbance

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