# (a) Interpretation: The density of solution I 2 is 0.794gm/cm 3 which is present in ethanol. Transmission of 33.2% of the radiation from a Mo Ka is done by using a layer of 1.50 cm. Mass absorption coefficient are 39.2,0.70, 0.00, 1.50 for I, C, H and O respectively. Percentage of I 2 present in ethanol is to be determined, neglecting the absorption by alcohol. Concept introduction: Formula used for the calculation are- ln P o P = μ M ρ x Where, P o = transmitted beam power P = incident beam power µ M = mass absorption coefficient ρ = density x = sample thickness μ M = W × μ Where, μ M = mass absorption coefficient of the sample μ I 2 = mass absorption coefficient of I 2 W= weight fraction of iodine ### Principles of Instrumental Analysis

7th Edition
Douglas A. Skoog + 2 others
Publisher: Cengage Learning
ISBN: 9781305577213 ### Principles of Instrumental Analysis

7th Edition
Douglas A. Skoog + 2 others
Publisher: Cengage Learning
ISBN: 9781305577213

#### Solutions

Chapter 12, Problem 12.8QAP
Interpretation Introduction

## (a)Interpretation:The density of solution I2 is 0.794gm/cm3 which is present in ethanol. Transmission of 33.2% of the radiation from a Mo Ka is done by using a layer of 1.50 cm. Mass absorption coefficient are 39.2,0.70, 0.00, 1.50 for I, C, H and O respectively. Percentage of I2 present in ethanol is to be determined, neglecting the absorption by alcohol.Concept introduction:Formula used for the calculation are-lnPoP=μMρxWhere,Po= transmitted beam powerP = incident beam powerµM = mass absorption coefficientρ = densityx = sample thicknessμM=W×μWhere,μM = mass absorption coefficient of the sampleμ I2 = mass absorption coefficient of I2 W= weight fraction of iodine

Interpretation Introduction

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