(a) Interpretation: The percentage of I-131 disintegrated needs to be determined. Concept introduction: All the radioactive reactions are first order reactions. For first order reaction, the relation between rate constant, k and half-life time is as follows: k = 0.6932 t 1 / 2 Also, the integrated rate expression can be written as follows: t = 2.303 k log A o A t Here, t is time required to decrease the amount of substance from A o to A t and k is rate constant for the reaction.

Question

You are trying to decide if there is a single reagent you can add that will make the following synthesis possible without any other major side products: xi 1. ☑ 2. H₂O хе i Draw the missing reagent X you think will make this synthesis work in the drawing area below. If there is no reagent that will make your desired product in good yield or without complications, just check the box under the drawing area and leave it blank. Click and drag to start drawing a structure. There is no reagent that will make this synthesis work without complications. : ☐ S ☐

Answer 1

Question

Chapter 18, Problem 54QAP

Interpretation Introduction

(a)

Interpretation:

The percentage of I-131 disintegrated needs to be determined.

Concept introduction:

All the radioactive reactions are first order reactions. For first order reaction, the relation between rate constant, k and half-life time is as follows:

k=0.6932t1/2

Also, the integrated rate expression can be written as follows:

t=2.303klogAoAt

Here, t is time required to decrease the amount of substance from Ao to At and k is rate constant for the reaction.

Interpretation Introduction

(b)

Interpretation:

The dosage of I-131 recommended to the patient needs to be determined.

Concept introduction:

All the radioactive reactions are first order reactions. For first order reaction, the relation between rate constant, k and half-life time is as follows:

k=0.6932t1/2

Also, the integrated rate expression can be written as follows:

t=2.303klogAoAt

Here, t is time required to decrease the amount of substance from Ao to At and k is rate constant for the reaction.

Expert Solution & Answer

Trending nowThis is a popular solution!

See solution

Check out sample textbook solution

Students have asked these similar questions

You are trying to decide if there is a single reagent you can add that will make the following synthesis possible without any other major side products: xi 1. ☑ 2. H₂O хе i Draw the missing reagent X you think will make this synthesis work in the drawing area below. If there is no reagent that will make your desired product in good yield or without complications, just check the box under the drawing area and leave it blank. Click and drag to start drawing a structure. There is no reagent that will make this synthesis work without complications. : ☐ S ☐

Predict the major products of this organic reaction: H OH 1. LiAlH4 2. H₂O ? Note: be sure you use dash and wedge bonds when necessary, for example to distinguish between major products with different stereochemistry. Click and drag to start drawing a structure. G C टे

For each reaction below, decide if the first stable organic product that forms in solution will create a new C-C bond, and check the appropriate box. Next, for each reaction to which you answered "Yes" to in the table, draw this product in the drawing area below. Note for advanced students: for this problem, don't worry if you think this product will continue to react under the current conditions - just focus on the first stable product you expect to form in solution. NH2 CI MgCl ? Will the first product that forms in this reaction create a new CC bond? Yes No MgBr ? Will the first product that forms in this reaction create a new CC bond? Yes No G टे