Number of decay events per second in 1 curie of radiation is given. Mass of Na 2 38 SO 4 that has an activity of 10 .0mCi is to be determined. Concept introduction: A process through which a unstable nuclide loses its energy due to excess of protons or neutrons is known as radioactive decay. The cause of instability of a nuclide is its inefficiency in holding the nucleus together. The curie is commonly used to measure nuclear radioactivity. To determine: The mass of Na 2 38 SO 4 that has an activity of 10 .0 mCi .

Question

Given the first-order reaction: aA → products. State its kinetic equation.

Answer 1

Question

Chapter 19, Problem 68AE

(a)

Interpretation Introduction

Interpretation: Number of decay events per second in $1$ curie of radiation is given. Mass of $Na238SO4$ that has an activity of $10.0mCi$ is to be determined.

Concept introduction: A process through which a unstable nuclide loses its energy due to excess of protons or neutrons is known as radioactive decay. The cause of instability of a nuclide is its inefficiency in holding the nucleus together. The curie is commonly used to measure nuclear radioactivity.

To determine: The mass of $Na238SO4$ that has an activity of $10.0 mCi$ .

(b)

Interpretation Introduction

Interpretation: Time taken for $99.99%$ of a sample of sulfur- $38$ to decay is to be calculated.

Concept introduction: A process through which a unstable nuclide loses its energy due to excess of protons or neutrons is known as radioactive decay. The cause of instability of a nuclide is its inefficiency in holding the nucleus together. The curie is commonly used to measure nuclear radioactivity.

To determine: The time taken by $99.99%$ sulfur- $38$ to decay.

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Answer 2

Question

Chapter 19, Problem 68AE

(a)

Interpretation Introduction

Interpretation: Number of decay events per second in $1$ curie of radiation is given. Mass of $Na238SO4$ that has an activity of $10.0mCi$ is to be determined.

Concept introduction: A process through which a unstable nuclide loses its energy due to excess of protons or neutrons is known as radioactive decay. The cause of instability of a nuclide is its inefficiency in holding the nucleus together. The curie is commonly used to measure nuclear radioactivity.

To determine: The mass of $Na238SO4$ that has an activity of $10.0 mCi$ .

(b)

Interpretation Introduction

Interpretation: Time taken for $99.99%$ of a sample of sulfur- $38$ to decay is to be calculated.

Concept introduction: A process through which a unstable nuclide loses its energy due to excess of protons or neutrons is known as radioactive decay. The cause of instability of a nuclide is its inefficiency in holding the nucleus together. The curie is commonly used to measure nuclear radioactivity.

To determine: The time taken by $99.99%$ sulfur- $38$ to decay.

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Answer 3

Question

Chapter 19, Problem 68AE

(a)

Interpretation Introduction

Interpretation: Number of decay events per second in $1$ curie of radiation is given. Mass of $Na238SO4$ that has an activity of $10.0mCi$ is to be determined.

Concept introduction: A process through which a unstable nuclide loses its energy due to excess of protons or neutrons is known as radioactive decay. The cause of instability of a nuclide is its inefficiency in holding the nucleus together. The curie is commonly used to measure nuclear radioactivity.

To determine: The mass of $Na238SO4$ that has an activity of $10.0 mCi$ .

(b)

Interpretation Introduction

Interpretation: Time taken for $99.99%$ of a sample of sulfur- $38$ to decay is to be calculated.

Concept introduction: A process through which a unstable nuclide loses its energy due to excess of protons or neutrons is known as radioactive decay. The cause of instability of a nuclide is its inefficiency in holding the nucleus together. The curie is commonly used to measure nuclear radioactivity.

To determine: The time taken by $99.99%$ sulfur- $38$ to decay.

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Answer 4

Question

Chapter 19, Problem 68AE

(a)

Interpretation Introduction

Interpretation: Number of decay events per second in $1$ curie of radiation is given. Mass of $Na238SO4$ that has an activity of $10.0mCi$ is to be determined.

Concept introduction: A process through which a unstable nuclide loses its energy due to excess of protons or neutrons is known as radioactive decay. The cause of instability of a nuclide is its inefficiency in holding the nucleus together. The curie is commonly used to measure nuclear radioactivity.

To determine: The mass of $Na238SO4$ that has an activity of $10.0 mCi$ .

(b)

Interpretation Introduction

Interpretation: Time taken for $99.99%$ of a sample of sulfur- $38$ to decay is to be calculated.

Concept introduction: A process through which a unstable nuclide loses its energy due to excess of protons or neutrons is known as radioactive decay. The cause of instability of a nuclide is its inefficiency in holding the nucleus together. The curie is commonly used to measure nuclear radioactivity.

To determine: The time taken by $99.99%$ sulfur- $38$ to decay.

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Answer 5

Chapter 19, Problem 68AE

(a)

Interpretation Introduction

Interpretation: Number of decay events per second in $1$ curie of radiation is given. Mass of $Na238SO4$ that has an activity of $10.0mCi$ is to be determined.

Concept introduction: A process through which a unstable nuclide loses its energy due to excess of protons or neutrons is known as radioactive decay. The cause of instability of a nuclide is its inefficiency in holding the nucleus together. The curie is commonly used to measure nuclear radioactivity.

To determine: The mass of $Na238SO4$ that has an activity of $10.0 mCi$ .

(b)

Interpretation Introduction

Interpretation: Time taken for $99.99%$ of a sample of sulfur- $38$ to decay is to be calculated.

Concept introduction: A process through which a unstable nuclide loses its energy due to excess of protons or neutrons is known as radioactive decay. The cause of instability of a nuclide is its inefficiency in holding the nucleus together. The curie is commonly used to measure nuclear radioactivity.

To determine: The time taken by $99.99%$ sulfur- $38$ to decay.

Answer 6

Chapter 19, Problem 68AE

(a)

Interpretation Introduction

Interpretation: Number of decay events per second in $1$ curie of radiation is given. Mass of $Na238SO4$ that has an activity of $10.0mCi$ is to be determined.

Concept introduction: A process through which a unstable nuclide loses its energy due to excess of protons or neutrons is known as radioactive decay. The cause of instability of a nuclide is its inefficiency in holding the nucleus together. The curie is commonly used to measure nuclear radioactivity.

To determine: The mass of $Na238SO4$ that has an activity of $10.0 mCi$ .

Answer 7

Chapter 19, Problem 68AE

(a)

Interpretation Introduction

Interpretation: Number of decay events per second in $1$ curie of radiation is given. Mass of $Na238SO4$ that has an activity of $10.0mCi$ is to be determined.

Concept introduction: A process through which a unstable nuclide loses its energy due to excess of protons or neutrons is known as radioactive decay. The cause of instability of a nuclide is its inefficiency in holding the nucleus together. The curie is commonly used to measure nuclear radioactivity.

To determine: The mass of $Na238SO4$ that has an activity of $10.0 mCi$ .

Answer 8

(b)

Interpretation Introduction

Interpretation: Time taken for $99.99%$ of a sample of sulfur- $38$ to decay is to be calculated.

Concept introduction: A process through which a unstable nuclide loses its energy due to excess of protons or neutrons is known as radioactive decay. The cause of instability of a nuclide is its inefficiency in holding the nucleus together. The curie is commonly used to measure nuclear radioactivity.

To determine: The time taken by $99.99%$ sulfur- $38$ to decay.

Answer 9

(b)

Interpretation Introduction

Interpretation: Time taken for $99.99%$ of a sample of sulfur- $38$ to decay is to be calculated.

Concept introduction: A process through which a unstable nuclide loses its energy due to excess of protons or neutrons is known as radioactive decay. The cause of instability of a nuclide is its inefficiency in holding the nucleus together. The curie is commonly used to measure nuclear radioactivity.

To determine: The time taken by $99.99%$ sulfur- $38$ to decay.

Answer 10

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Answer 21

Ch. 19 - Prob. 1RQ Ch. 19 - Prob. 2RQ Ch. 19 - Prob. 3RQ Ch. 19 - Prob. 4RQ Ch. 19 - Prob. 5RQ Ch. 19 - Prob. 6RQ Ch. 19 - Prob. 7RQ Ch. 19 - Prob. 8RQ Ch. 19 - Prob. 9RQ Ch. 19 - Prob. 10RQ

Solution Summary: The author explains radioactive decay as a process through which an unstable nuclide loses its energy due to excess of protons or neutrons.

Chapter 19 Solutions