The activity of radio-labeled sodium iodide sample made from Iodine-131 at the time of accidental exposure, in the unit Ci / g , is to be calculated when its activity after 28 days is 25.6 × 10 − 5 Ci/g . Concept Information: The isotope of iodine is iodine-131 that emits radiation. This isotope is used in medicinal purposes as the bloodstream absorbs it in the gastrointestinal tract, gets concentrated in the thyroid gland and gland’s cell are destroyed by it. The relation between concentration and time in exponential form for a first-order reaction is given by the following equation: [ A ] = [ A ] 0 e − k t So, the half-life for a first-order reaction is given as, t 1 / 2 = ln 2 k = 0.693 k

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Answer 1

Question

Chapter 20, Problem 95RQ

Interpretation Introduction

Interpretation:

The activity of radio-labeled sodium iodide sample made from Iodine-131 at the time of accidental exposure, in the unit Ci/g, is to be calculated when its activity after 28 days is 25.6×10−5 Ci/g.

Concept Information:

The isotope of iodine is iodine-131 that emits radiation. This isotope is used in medicinal purposes as the bloodstream absorbs it in the gastrointestinal tract, gets concentrated in the thyroid gland and gland’s cell are destroyed by it.

The relation between concentration and time in exponential form for a first-order reaction is given by the following equation:

[A]=[A]0e−kt

So, the half-life for a first-order reaction is given as,

t1/2=ln2k=0.693k

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Answer 2

Question

Chapter 20, Problem 95RQ

Interpretation Introduction

Interpretation:

The activity of radio-labeled sodium iodide sample made from Iodine-131 at the time of accidental exposure, in the unit Ci/g, is to be calculated when its activity after 28 days is 25.6×10−5 Ci/g.

Concept Information:

The isotope of iodine is iodine-131 that emits radiation. This isotope is used in medicinal purposes as the bloodstream absorbs it in the gastrointestinal tract, gets concentrated in the thyroid gland and gland’s cell are destroyed by it.

The relation between concentration and time in exponential form for a first-order reaction is given by the following equation:

[A]=[A]0e−kt

So, the half-life for a first-order reaction is given as,

t1/2=ln2k=0.693k

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Check out a sample textbook solution

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Answer 3

Question

Chapter 20, Problem 95RQ

Interpretation Introduction

Interpretation:

The activity of radio-labeled sodium iodide sample made from Iodine-131 at the time of accidental exposure, in the unit Ci/g, is to be calculated when its activity after 28 days is 25.6×10−5 Ci/g.

Concept Information:

The isotope of iodine is iodine-131 that emits radiation. This isotope is used in medicinal purposes as the bloodstream absorbs it in the gastrointestinal tract, gets concentrated in the thyroid gland and gland’s cell are destroyed by it.

The relation between concentration and time in exponential form for a first-order reaction is given by the following equation:

[A]=[A]0e−kt

So, the half-life for a first-order reaction is given as,

t1/2=ln2k=0.693k

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Answer 4

Question

Chapter 20, Problem 95RQ

Interpretation Introduction

Interpretation:

The activity of radio-labeled sodium iodide sample made from Iodine-131 at the time of accidental exposure, in the unit Ci/g, is to be calculated when its activity after 28 days is 25.6×10−5 Ci/g.

Concept Information:

The isotope of iodine is iodine-131 that emits radiation. This isotope is used in medicinal purposes as the bloodstream absorbs it in the gastrointestinal tract, gets concentrated in the thyroid gland and gland’s cell are destroyed by it.

The relation between concentration and time in exponential form for a first-order reaction is given by the following equation:

[A]=[A]0e−kt

So, the half-life for a first-order reaction is given as,

t1/2=ln2k=0.693k

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Answer 5

Chapter 20, Problem 95RQ

Interpretation Introduction

Interpretation:

The activity of radio-labeled sodium iodide sample made from Iodine-131 at the time of accidental exposure, in the unit Ci/g, is to be calculated when its activity after 28 days is 25.6×10−5 Ci/g.

Concept Information:

The isotope of iodine is iodine-131 that emits radiation. This isotope is used in medicinal purposes as the bloodstream absorbs it in the gastrointestinal tract, gets concentrated in the thyroid gland and gland’s cell are destroyed by it.

The relation between concentration and time in exponential form for a first-order reaction is given by the following equation:

[A]=[A]0e−kt

So, the half-life for a first-order reaction is given as,

t1/2=ln2k=0.693k

Answer 6

Chapter 20, Problem 95RQ

Interpretation Introduction

Interpretation:

The activity of radio-labeled sodium iodide sample made from Iodine-131 at the time of accidental exposure, in the unit Ci/g, is to be calculated when its activity after 28 days is 25.6×10−5 Ci/g.

Concept Information:

The isotope of iodine is iodine-131 that emits radiation. This isotope is used in medicinal purposes as the bloodstream absorbs it in the gastrointestinal tract, gets concentrated in the thyroid gland and gland’s cell are destroyed by it.

The relation between concentration and time in exponential form for a first-order reaction is given by the following equation:

[A]=[A]0e−kt

So, the half-life for a first-order reaction is given as,

t1/2=ln2k=0.693k

Answer 7

Chapter 20, Problem 95RQ

Interpretation Introduction

Interpretation:

The activity of radio-labeled sodium iodide sample made from Iodine-131 at the time of accidental exposure, in the unit Ci/g, is to be calculated when its activity after 28 days is 25.6×10−5 Ci/g.

Concept Information:

The isotope of iodine is iodine-131 that emits radiation. This isotope is used in medicinal purposes as the bloodstream absorbs it in the gastrointestinal tract, gets concentrated in the thyroid gland and gland’s cell are destroyed by it.

The relation between concentration and time in exponential form for a first-order reaction is given by the following equation:

[A]=[A]0e−kt

So, the half-life for a first-order reaction is given as,

t1/2=ln2k=0.693k

Answer 8

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Answer 9

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Answer 10

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Answer 11

Ch. 20 - Prob. 1PE Ch. 20 - Prob. 2PE Ch. 20 - Prob. 3PE Ch. 20 - Prob. 4PE Ch. 20 - Prob. 5PE Ch. 20 - Prob. 6PE Ch. 20 - Prob. 7PE Ch. 20 - Prob. 8PE Ch. 20 - Prob. 9PE Ch. 20 - Prob. 10PE

Solution Summary: The author explains that the activity of radio-labeled sodium iodide sample made from Iode-131 at the time of accidental exposure is calculated when its activity after 28 days is 25.6times

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