The compound that is not positional isomer of ethyl ethanoate has to be identified from the given options. Concept Introduction: Functional group isomerism is the one in which the functional group of two compounds are totally different but the molecular formula of the compounds remains the same. Esters and carboxylic acids that have same number of carbon atoms and same degree of saturation can have functional group isomerism. This is a type of constitutional isomerism. Positional isomerism exist in esters when the alkyl group and acyl group carbon chain can be arranged in different ways.

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Reagan is doing an atomic absorption experiment that requires a set of zinc standards in the 0.4- 1.6 ppm range. A 1000 ppm Zn solution was prepared by dissolving the necessary amount of solid Zn(NO3)2 in water. The standards can be prepared by diluting the 1000 ppm Zn solution. Table 1 shows one possible set of serial dilutions (stepwise dilution of a solution) that Reagan could perform to make the necessary standards. Solution A was prepared by diluting 5.00 ml of the 1000 ppm Zn standard to 50.00 ml. Solutions C-E are called "calibration standards" because they will be used to calibrate the atomic absorption spectrometer. Table 1: Dilutions of Zinc Solutions Solution Zinc Solution Volume Diluted Solution Concentration used volume (ppm Zn) (mL) (mL) concentration (ppm Zn) Solution concentration A 1000 5.00 50.00 1.00×10² (ppm Zn(NO3)2) 2.90×10² Solution concentration (M Zn(NO3)2 1.53×10-3 B Solution A 5.00 100.00 5.00 C Solution B 5.00 50.00 0.50 7.65×10-6 D Solution B 10.00 50.00…

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Question

Chapter 5.14, Problem 2QQ

Interpretation Introduction

Interpretation:

The compound that is not positional isomer of ethyl ethanoate has to be identified from the given options.

Concept Introduction:

Functional group isomerism is the one in which the functional group of two compounds are totally different but the molecular formula of the compounds remains the same. Esters and carboxylic acids that have same number of carbon atoms and same degree of saturation can have functional group isomerism. This is a type of constitutional isomerism.

Positional isomerism exist in esters when the alkyl group and acyl group carbon chain can be arranged in different ways.

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Reagan is doing an atomic absorption experiment that requires a set of zinc standards in the 0.4- 1.6 ppm range. A 1000 ppm Zn solution was prepared by dissolving the necessary amount of solid Zn(NO3)2 in water. The standards can be prepared by diluting the 1000 ppm Zn solution. Table 1 shows one possible set of serial dilutions (stepwise dilution of a solution) that Reagan could perform to make the necessary standards. Solution A was prepared by diluting 5.00 ml of the 1000 ppm Zn standard to 50.00 ml. Solutions C-E are called "calibration standards" because they will be used to calibrate the atomic absorption spectrometer. Table 1: Dilutions of Zinc Solutions Solution Zinc Solution Volume Diluted Solution Concentration used volume (ppm Zn) (mL) (mL) concentration (ppm Zn) Solution concentration A 1000 5.00 50.00 1.00×10² (ppm Zn(NO3)2) 2.90×10² Solution concentration (M Zn(NO3)2 1.53×10-3 B Solution A 5.00 100.00 5.00 C Solution B 5.00 50.00 0.50 7.65×10-6 D Solution B 10.00 50.00…

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