Precipitate protein is obtained by treating 5.00 mL sample of blood with trichloroacetic acid. The final solution has pH of 3 and this solution is extracted with two portions of 5 ml of methyl isobutyl ketone APCD that is an organic lead complex agent, this whole process is done after centrifugation. Absorbance of 0.454 at 283.3nm is obtained when the extracted solution is reacted directly with air-acetylene flame. In the same way, absorbance of 0.412 and 0.642 is obtained by treating 5mL aliquots standard solution of 0.240 ppm and 0.475 ppm of Pb. Concentration of Pb in ppm needs to be calculated by following the Beer’s law. Concept introduction: Beer Lambert law gives the relationship between absorbance and concentration of a sample. For the calculation of concentration, the following the equation of straight line as follows: y = m x + c Where, y = absorbance x = concentration of sample m is slope of graph plotted between absorbance and concentration of the sample. And, C is intercept of the graph.

Question

(30 MARKS) Give the major product(s ) formed including relevant stereochemistry or the complete reaction conditions for the following reactions. More than one step may be required for each reaction arrow, in which case the steps must be numbered 1), 2) etc. (2 marks each box) h) i) h) OH i) HO H3PO4, heat 2 Br

Answer 1

Question

Definition Definition Organic compounds that have a carbonyl group, C = O, as their functional group. The carbonyl group in ketones is placed somewhere in the middle of the molecular structure, which means, the C=O is attached to two alkyl groups or benzene rings. Just like all other homologous series, the naming of ketones is done using a common suffix “-one”. The general molecular formula is C n H 2n O. Functional group of a ketone

Chapter 9, Problem 9.20QAP

Interpretation Introduction

Interpretation:

Precipitate protein is obtained by treating 5.00 mL sample of blood with trichloroacetic acid. The final solution has pH of 3 and this solution is extracted with two portions of 5 ml of methyl isobutyl ketone APCD that is an organic lead complex agent, this whole process is done after centrifugation. Absorbance of 0.454 at 283.3nm is obtained when the extracted solution is reacted directly with air-acetylene flame. In the same way, absorbance of 0.412 and 0.642 is obtained by treating 5mL aliquots standard solution of 0.240 ppm and 0.475 ppm of Pb. Concentration of Pb in ppm needs to be calculated by following the Beer’s law.

Concept introduction:

Beer Lambert law gives the relationship between absorbance and concentration of a sample. For the calculation of concentration, the following the equation of straight line as follows:

y=mx+c

Where,

y = absorbance

x = concentration of sample

m is slope of graph plotted between absorbance and concentration of the sample.

And,

C is intercept of the graph.

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(30 MARKS) Give the major product(s ) formed including relevant stereochemistry or the complete reaction conditions for the following reactions. More than one step may be required for each reaction arrow, in which case the steps must be numbered 1), 2) etc. (2 marks each box) h) i) h) OH i) HO H3PO4, heat 2 Br

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Indicate which option is false(A). Resistivity has a residual component and a thermal component.(B). In some materials resistivity increases with T and in others it decreases.(C). In insulating materials, resistivity is very low.

Answer 2

Question

Definition Definition Organic compounds that have a carbonyl group, C = O, as their functional group. The carbonyl group in ketones is placed somewhere in the middle of the molecular structure, which means, the C=O is attached to two alkyl groups or benzene rings. Just like all other homologous series, the naming of ketones is done using a common suffix “-one”. The general molecular formula is C n H 2n O. Functional group of a ketone

Chapter 9, Problem 9.20QAP

Interpretation Introduction

Interpretation:

Precipitate protein is obtained by treating 5.00 mL sample of blood with trichloroacetic acid. The final solution has pH of 3 and this solution is extracted with two portions of 5 ml of methyl isobutyl ketone APCD that is an organic lead complex agent, this whole process is done after centrifugation. Absorbance of 0.454 at 283.3nm is obtained when the extracted solution is reacted directly with air-acetylene flame. In the same way, absorbance of 0.412 and 0.642 is obtained by treating 5mL aliquots standard solution of 0.240 ppm and 0.475 ppm of Pb. Concentration of Pb in ppm needs to be calculated by following the Beer’s law.

Concept introduction:

Beer Lambert law gives the relationship between absorbance and concentration of a sample. For the calculation of concentration, the following the equation of straight line as follows:

y=mx+c

Where,

y = absorbance

x = concentration of sample

m is slope of graph plotted between absorbance and concentration of the sample.

And,

C is intercept of the graph.

Expert Solution & Answer

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See solution

Check out sample textbook solution

Answer 3

Question

Definition Definition Organic compounds that have a carbonyl group, C = O, as their functional group. The carbonyl group in ketones is placed somewhere in the middle of the molecular structure, which means, the C=O is attached to two alkyl groups or benzene rings. Just like all other homologous series, the naming of ketones is done using a common suffix “-one”. The general molecular formula is C n H 2n O. Functional group of a ketone

Chapter 9, Problem 9.20QAP

Interpretation Introduction

Interpretation:

Precipitate protein is obtained by treating 5.00 mL sample of blood with trichloroacetic acid. The final solution has pH of 3 and this solution is extracted with two portions of 5 ml of methyl isobutyl ketone APCD that is an organic lead complex agent, this whole process is done after centrifugation. Absorbance of 0.454 at 283.3nm is obtained when the extracted solution is reacted directly with air-acetylene flame. In the same way, absorbance of 0.412 and 0.642 is obtained by treating 5mL aliquots standard solution of 0.240 ppm and 0.475 ppm of Pb. Concentration of Pb in ppm needs to be calculated by following the Beer’s law.

Concept introduction:

Beer Lambert law gives the relationship between absorbance and concentration of a sample. For the calculation of concentration, the following the equation of straight line as follows:

y=mx+c

Where,

y = absorbance

x = concentration of sample

m is slope of graph plotted between absorbance and concentration of the sample.

And,

C is intercept of the graph.

Expert Solution & Answer

Trending nowThis is a popular solution!

See solution

Check out sample textbook solution

Answer 4

Question

Definition Definition Organic compounds that have a carbonyl group, C = O, as their functional group. The carbonyl group in ketones is placed somewhere in the middle of the molecular structure, which means, the C=O is attached to two alkyl groups or benzene rings. Just like all other homologous series, the naming of ketones is done using a common suffix “-one”. The general molecular formula is C n H 2n O. Functional group of a ketone

Chapter 9, Problem 9.20QAP

Interpretation Introduction