The diagram that represents the sample of X after 105 days is to be determined. Concept introduction: Half-life of a reaction is defined as the time in which the reactant concentration becomes half. In other words, it is the time required for 50 % completion of the reaction.

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Answer 1

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Chapter 20.4, Problem 1PPC

Interpretation Introduction

Interpretation:

The diagram that represents the sample of X after 105 days is to be determined.

Concept introduction:

Half-life of a reaction is defined as the time in which the reactant concentration becomes half. In other words, it is the time required for 50% completion of the reaction.

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BRINE SOLUTION PROBLEM: Carbon-14 is a radioactive isotope of carbon that has a half-life of 5600 years. It is used extensively in dating organic material that is tens of thousands of years old. What fraction of the original amount of Carbon-14 in a sample would be present after 10,000 years?

Phosphorus-32 is used in biochemical studies to follow the pathway taken by metabolites. Its half-life is 14.3 days. A vial containing 10 microgram of P-32 is accidentally spilled into a sink. Use the GRS (Given-Required-Solution) format of problem solving. a. How long will it take P-32 in the drain to exhibit 68% of its original activity?b. How many atoms of P-32 remain in the sink after 755 days?

How did you get this? k===0.693t1/20.69315 hrs0.0462 hrs−1k=0.693t1/2=0.69315 hrs=0.0462 hrs 0.693 a 102.0 nanogram(ng) sample of sodium-24 was stored in a lead-lined cabinet for 2.5 days How much sodium-24 remained? The half-life os sodium -24 is 15 hours _________ ng sodium -24 remain check_circle Expert Answer thumb_up thumb_down Step 1 Radioactive decay is a first order reaction. Conversion of days into hours: 1 day2.5 days===24 hrs2.5×2460 hrs1 day=24 hrs2.5 days=2.5×24=60 hrs Calculation of k: k===0.693t1/20.69315 hrs0.0462 hrs−1k=0.693t1/2=0.69315 hrs=0.0462 hrs-1 Step 2 Radioactive decay is a first order reaction, therefore: [A]=[Ao] e−kt[A]=[Ao] e-kt where [A] is the final amount remained at time t, [Ao] is the initial amount. Putting values: [A]====102.0 ng×e−0.0462 hrs−1×60 hrs102.0 ng×e−2.772102.0 ng×0.062546.38 ng[A]=102.0 ng×e-0.0462 hrs-1×60 hrs=102.0 ng×e-2.772=102.0 ng×0.06254=6.38 ng Thus 6.38 ng of sodium-24 remained.

Answer 2

Question

Chapter 20.4, Problem 1PPC

Interpretation Introduction

Interpretation:

The diagram that represents the sample of X after 105 days is to be determined.

Concept introduction:

Half-life of a reaction is defined as the time in which the reactant concentration becomes half. In other words, it is the time required for 50% completion of the reaction.

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Answer 3

Question

Chapter 20.4, Problem 1PPC

Interpretation Introduction

Interpretation:

The diagram that represents the sample of X after 105 days is to be determined.

Concept introduction:

Half-life of a reaction is defined as the time in which the reactant concentration becomes half. In other words, it is the time required for 50% completion of the reaction.

Expert Solution & Answer

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Answer 4

Question

Chapter 20.4, Problem 1PPC

Interpretation Introduction

Interpretation:

The diagram that represents the sample of X after 105 days is to be determined.

Concept introduction:

Half-life of a reaction is defined as the time in which the reactant concentration becomes half. In other words, it is the time required for 50% completion of the reaction.

Expert Solution & Answer

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Answer 5

Chapter 20.4, Problem 1PPC

Interpretation Introduction

Interpretation:

The diagram that represents the sample of X after 105 days is to be determined.

Concept introduction:

Half-life of a reaction is defined as the time in which the reactant concentration becomes half. In other words, it is the time required for 50% completion of the reaction.

Answer 6

Chapter 20.4, Problem 1PPC

Interpretation Introduction

Interpretation:

The diagram that represents the sample of X after 105 days is to be determined.

Concept introduction:

Half-life of a reaction is defined as the time in which the reactant concentration becomes half. In other words, it is the time required for 50% completion of the reaction.

Answer 7

Chapter 20.4, Problem 1PPC

Interpretation Introduction

Interpretation:

The diagram that represents the sample of X after 105 days is to be determined.

Concept introduction:

Half-life of a reaction is defined as the time in which the reactant concentration becomes half. In other words, it is the time required for 50% completion of the reaction.

Answer 8

Expert Solution & Answer

Answer 9

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Answer 10

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Answer 11

Ch. 20.1 - Practice Problem ATTEMPT Identify X in each of...Ch. 20.1 - Prob. 1PPB Ch. 20.1 - Practice Problem CONCEPTUALIZE For each process,...Ch. 20.1 - Prob. 1CP Ch. 20.1 - Prob. 2CP Ch. 20.2 - Prob. 1PPA Ch. 20.2 - Prob. 1PPB Ch. 20.2 - Practice Problem CONCEPTUALIZE Which of the...Ch. 20.2 - Prob. 1CP Ch. 20.2 - Prob. 2CP

The diagram that represents the sample of X after 105 days is to be determined. Concept introduction: Half-life of a reaction is defined as the time in which the reactant concentration becomes half. In other words, it is the time required for 50 % completion of the reaction.

Solution Summary: The author explains that half-life of a reaction is defined as the time in which the reactant concentration becomes half.

Concept explainers

Interpretation:

The diagram that represents the sample of X after 105 days is to be determined.

Concept introduction:

Half-life of a reaction is defined as the time in which the reactant concentration becomes half. In other words, it is the time required for 50% completion of the reaction.

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Chapter 20 Solutions

The diagram that represents the sample of X after 105 days is to be determined. Concept introduction: Half-life of a reaction is defined as the time in which the reactant concentration becomes half. In other words, it is the time required for 50 % completion of the reaction.

Solution Summary: The author explains that half-life of a reaction is defined as the time in which the reactant concentration becomes half.

Concept explainers

Interpretation: The diagram that represents the sample of X after 105 days is to be determined. Concept introduction: Half-life of a reaction is defined as the time in which the reactant concentration becomes half. In other words, it is the time required for 50% completion of the reaction.

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Chapter 20 Solutions

Interpretation:

The diagram that represents the sample of X after 105 days is to be determined.

Concept introduction:

Half-life of a reaction is defined as the time in which the reactant concentration becomes half. In other words, it is the time required for 50% completion of the reaction.