The curie (Ci) is a commonly used unit for measuring nuclear radioactivity: 1 curie of radiation is equal to 3.7 × 10 10 decay events per second (the number of decay events from l g radium in 1 s). A 1.7-mL sample of water containing tritium was injected into a 150-lb person. The total activity of radiation injected was 86.5 mCi. After some time to allow the tritium activity to equally distribute throughout the body, a sample of blood plasma containing 2.0 mL water at an activity of 3.6 μ Ci was removed. From these data, calculate the mass percent of water in this 150-lb person.

BuyFind

Chemistry

10th Edition
Steven S. Zumdahl + 2 others
Publisher: Cengage Learning
ISBN: 9781305957404
BuyFind

Chemistry

10th Edition
Steven S. Zumdahl + 2 others
Publisher: Cengage Learning
ISBN: 9781305957404

Solutions

Chapter 19, Problem 88CP
Textbook Problem

The curie (Ci) is a commonly used unit for measuring nuclear radioactivity: 1 curie of radiation is equal to 3.7 × 1010 decay events per second (the number of decay events from l g radium in 1 s). A 1.7-mL sample of water containing tritium was injected into a 150-lb person. The total activity of radiation injected was 86.5 mCi. After some time to allow the tritium activity to equally distribute throughout the body, a sample of blood plasma containing 2.0 mL water at an activity of 3.6 μCi was removed. From these data, calculate the mass percent of water in this 150-lb person.

Expert Solution

Want to see the full answer?

Check out a sample textbook solution.

Want to see this answer and more?

Experts are waiting 24/7 to provide step-by-step solutions in as fast as 30 minutes!*

*Response times vary by subject and question complexity. Median response time is 34 minutes and may be longer for new subjects.

Chapter 19 Solutions

Chemistry
Ch. 19 - When nuclei undergo nuclear transformations, rays...Ch. 19 - Do radiotracers generally have long or short...Ch. 19 - There is a trend in the United States toward using...Ch. 19 - Which type of radioactive decay has the net effect...Ch. 19 - Consider the following graph of binding energy per...Ch. 19 - What are transuranium elements and how are they...Ch. 19 - Scientists have estimated that the earths crust...Ch. 19 - Why are the observed energy changes for nuclear...Ch. 19 - Natural uranium is mostly nonfissionable 238U; it...Ch. 19 - Much of the research on controlled fusion focuses...Ch. 19 - Describe the relative penetrating powers of alpha,...Ch. 19 - Explain the difference between somatic damage from...Ch. 19 - A recent study concluded that any amount of...Ch. 19 - Write an equation describing the radioactive decay...Ch. 19 - In each of the following radioactive decay...Ch. 19 - Supply the missing particle, and state the type of...Ch. 19 - Write balanced equations for each of the processes...Ch. 19 - Write an equation describing Ute radioactive decay...Ch. 19 - In each of the following radioactive decay...Ch. 19 - Uranium-235 undergoes a series of -particle and,...Ch. 19 - The radioactive isotope 247Bk decays by a series...Ch. 19 - One type of commercial smoke detector contains a...Ch. 19 - Thorium-232 is known to undergo a progressive...Ch. 19 - In 1994 it was proposed (and eventually accepted)...Ch. 19 - Many elements have been synthesized by bombarding...Ch. 19 - What is the rate of decay from 1.00 mol of...Ch. 19 - The curie (Ci) is a commonly used unit for...Ch. 19 - Americium-241 is widely used in smoke detectors....Ch. 19 - Krypton consists of several radioactive isotopes,...Ch. 19 - A chemist wishing to do an experiment requiring...Ch. 19 - Radioactive copper-64 decays with a half-life of...Ch. 19 - The first atomic explosion was detonated in the...Ch. 19 - Iodine-131 is used in the diagnosis and treatment...Ch. 19 - Technetium-99 has been used as a radiographic...Ch. 19 - Phosphorus-32 is a commonly used radioactive...Ch. 19 - The bromine-82 nucleus has a half-life of 1.0 103...Ch. 19 - Fresh rainwater or surface water contains enough...Ch. 19 - A living plant contains approximately the same...Ch. 19 - Assume a constant 14C/12C ratio of 13.6 counts per...Ch. 19 - A rock contains 0.688 mg 206Pb for every 1.000 mg...Ch. 19 - The mass ratios of 40Ar to 40K also can be used to...Ch. 19 - The sun radiates 3.9 1023 J of energy into space...Ch. 19 - The earth receives 1.8 1014 kJ/s of solar energy....Ch. 19 - Many transuranium elements, such as plutonium-232,...Ch. 19 - The most stable nucleus in terms of binding energy...Ch. 19 - Calculate the binding energy per nucleon for H12...Ch. 19 - The binding energy for lithium-6 is 3.086 1012...Ch. 19 - The binding energy per nucleon for magnesium-27 is...Ch. 19 - Calculate the amount of energy released per gram...Ch. 19 - The easiest fusion reaction to initiate is...Ch. 19 - The typical response of a Geiger-Mller tube is...Ch. 19 - When using a Geiger-Mller counter to measure...Ch. 19 - Consider the following reaction to produce methyl...Ch. 19 - A chemist studied the reaction mechanism for the...Ch. 19 - Uranium-235 undergoes many different fission...Ch. 19 - Breeder reactors are used to convert the...Ch. 19 - Which do you think would be the greater health...Ch. 19 - Consider the following information: i. The layer...Ch. 19 - Predict whether each of the following nuclides is...Ch. 19 - Each of the following isotopes has been used...Ch. 19 - In the bismuth-214 natural decay series, Bi-214...Ch. 19 - The curie (Ci) is a commonly used unit for...Ch. 19 - The mass percent of carbon in a typical human is...Ch. 19 - At a flea market, youve found a very interesting...Ch. 19 - Define third-life in a similar way to half-life,...Ch. 19 - A proposed system for storing nuclear wastes...Ch. 19 - During World War II, tritium (3H) was a component...Ch. 19 - A positron and an electron can annihilate each...Ch. 19 - A small atomic bomb releases energy equivalent to...Ch. 19 - During the research that led to production of the...Ch. 19 - Using the kinetic molecular theory (see Section...Ch. 19 - Consider the following reaction, which can take...Ch. 19 - Photosynthesis in plants can be represented by the...Ch. 19 - Strontium-90 and radon-222 both pose serious...Ch. 19 - Complete the following table with the nuclear...Ch. 19 - A certain radioactive nuclide has a half-life of...Ch. 19 - Cobalt-60 is commonly used as a source of ...Ch. 19 - Rubidium-87 decays by -particle production to...Ch. 19 - Given the following information: Mass of proton =...Ch. 19 - Which of the following statement(s) is(are) true?...Ch. 19 - Naturally occurring uranium is composed mostly of...Ch. 19 - The curie (Ci) is a commonly used unit for...Ch. 19 - A 0.10-cm3 sample of a solution containing a...Ch. 19 - Zirconium is one of the few metals that retains...Ch. 19 - In addition to the process described in the text,...Ch. 19 - The most significant source of natural radiation...Ch. 19 - To determine the Ksp value of Hg2I2, a chemist...Ch. 19 - Estimate the temperature needed to achieve the...Ch. 19 - A reported synthesis of the transuranium element...Ch. 19 - Radioactive cobalt-60 is used to study defects in...

Additional Science Textbook Solutions

Find more solutions based on key concepts
The BMI standard is an excellent tool for evaluating obesity in athletes and the elderly. T F

Nutrition: Concepts and Controversies - Standalone book (MindTap Course List)

How many centimeters are there in a kilometer?

An Introduction to Physical Science

What types of forces give rise to quaternary structure?

Chemistry for Today: General, Organic, and Biochemistry

What are the three most common chronic conditions affecting men over age 65?

Nutrition Through the Life Cycle (MindTap Course List)

A certain spring that obeys Hookes law is stretched by an external agent. The work done in stretching the sprin...

Physics for Scientists and Engineers, Technology Update (No access codes included)

How does an arthropod growth curve compare with yours?

Oceanography: An Invitation To Marine Science, Loose-leaf Versin