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Introduction to General, Organic a...

11th Edition
Frederick A. Bettelheim + 4 others
Publisher: Cengage Learning
ISBN: 9781285869759

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Chapter
Section
BuyFindarrow_forward

Introduction to General, Organic a...

11th Edition
Frederick A. Bettelheim + 4 others
Publisher: Cengage Learning
ISBN: 9781285869759
Chapter 9, Problem 9.45P
Textbook Problem
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9-45 A radioactive isotope with an activity (intensity) of 80.0 mCi per vial is delivered to a hospital. The vial contains 7.0 cc of liquid. The instruction is to administer 7.2 mCi intravenously. How many cubic centimeters of liquid should be used for one injection?

Interpretation Introduction

Interpretation:

The amount in cubic cm of radioactive sample from 7CC sample having 80 mCi activity which is used for one injection to administer 7.2 mCi intravenously should be determined.

Concept Introduction:

Activity of radioactive radiation depends on amount of radioactive sample.

Explanation of Solution

Activity of radiation is proportional to the number of radioactive atoms present in a radioactive sample. So, the activity will be proportional to the volume injected intravenously.

Now,

80 mCi activity is present in 7CC sample.

1 mCi activity is present in 780 CC sample.

7

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Chapter 9 Solutions

Introduction to General, Organic and Biochemistry
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Ch. 9 - 9-11 In each case, given the frequency, give the...Ch. 9 - 9-12 Red light has a wavelength of 650 nm. What is...Ch. 9 - 9-13 Which has the longest wavelength: (a)...Ch. 9 - 9-14 Write the symbol for a nucleus with the...Ch. 9 - 9-15 In each pair, tell which isotope is more...Ch. 9 - 9-16 Which isotope of boron is the most stable:...Ch. 9 - 9-17 Which isotope of oxygen is the most stable:...Ch. 9 - 9-18 Answer true or false. (a) The majority...Ch. 9 - 9-19 Samarium-151 is a beta emitter. Write an...Ch. 9 - 9-20 The following nuclei turn into new nuclei by...Ch. 9 - 9-21 Chromium-51 is used in diagnosing the...Ch. 9 - 9-22 The following nuclei decay by emitting alpha...Ch. 9 - 9-23 Curium-248 was bombarded, yielding...Ch. 9 - 9-24 Phosphorus-29 is a positron emitter. Write an...Ch. 9 - 9-25 For each of the following, write a balanced...Ch. 9 - 9-26 In the first three steps in the decay of...Ch. 9 - 9-27 What kind of emission does not result in...Ch. 9 - 9-28 Complete the following nuclear reactions. (a)...Ch. 9 - 9-29 Americium-240 is made by bombarding...Ch. 9 - 9-30 Answer true or false. (a) Half-life is the...Ch. 9 - 9-31 Iodine-125 emits gamma rays and has a...Ch. 9 - 9-32 Polonium-218, a decay product of radon-222...Ch. 9 - 9-33 A rock containing 1 mg of plutonium-239 per...Ch. 9 - 9-34 The element radium is extremely radioactive....Ch. 9 - 9-35 In what ways can we increase the rate of...Ch. 9 - 9-36 Suppose 50.0 mg of potassium-45, a beta...Ch. 9 - 9-37 A patient receives 200 mCi of iodine-131,...Ch. 9 - 9-38 Answer true or false. (a) Ionizing radiation...Ch. 9 - 9-39 If you work in a lab containing radioisotopes...Ch. 9 - 9-40 What do Geiger-Müller counters measure: (a)...Ch. 9 - 9-41 It is known that radioactivity is being...Ch. 9 - 9-42 Briefly contrast the three different units...Ch. 9 - 9-43 Does a curie (Ci) measure radiation intensity...Ch. 9 - 9-44 What property is measured with each of the...Ch. 9 - 9-45 A radioactive isotope with an activity...Ch. 9 - 9-46 Why does exposure of a hand to alpha rays not...Ch. 9 - 9-47 A certain radioisotope has an intensity of...Ch. 9 - 9-48 Assuming the same amount of absorbed...Ch. 9 - 9-49 In an accident involving radioactive...Ch. 9 - 9-50 Answer true or false. (a) Of the...Ch. 9 - 9-51 In 1986, the nuclear reactor in Chernobyl had...Ch. 9 - 9-52 Cobalt-60, with a half-life of 5.26 years, is...Ch. 9 - 9-53 Match the radioactive isotope with its proper...Ch. 9 - 9-54 Answer true or false. (a) In nuclear fusion,...Ch. 9 - 9-55 What are the products of the fusion of...Ch. 9 - 9-56 Assuming that one proton and two neutrons...Ch. 9 - 9-57 Element 109 was first prepared in 1982. A...Ch. 9 - 9-58 A new element was formed when lead-208 was...Ch. 9 - 9-59 Boron-10 is used in control rods for nuclear...Ch. 9 - 9-60 The most abundant isotope of uranium, does...Ch. 9 - 9-61 (Chemical Connections 9A) Why is it accurate...Ch. 9 - 9-62 (Chemical Connections 9A) In a recent...Ch. 9 - 9-63 (Chemical Connections 9A) Carbon-14 dating of...Ch. 9 - 9-64 (Chemical Connections 9A) The half-life of...Ch. 9 - 9-65 (Chemical Connections 9B) How does radon-222...Ch. 9 - 9-66 (Chemical Connections 9C) Why is high-energy...Ch. 9 - 9-67 (Chemical Connections 9D) How is the presence...Ch. 9 - 9-68 (Chemical Connections 9E) In a nuclear...Ch. 9 - 9-69 Phosphorus-32 is used in the medical imaging...Ch. 9 - 9-70 During the bombardment of argon-40 with...Ch. 9 - 9-71 Neon-19 and sodium-20 are positron emitters....Ch. 9 - 9-72 The half-life of nitrogen-16 is 7 seconds....Ch. 9 - 9-73 Do the curie and the becquerel measure the...Ch. 9 - 9-74 Selenium-75 has a half-life of 120.4 days, so...Ch. 9 - 9-75 Use Table 9-4 to determine the percentage of...Ch. 9 - is an alpha emitter. In its decay process, it...Ch. 9 - 9-77 Which radiation will cause more ionization,...Ch. 9 - 9-78 You have an old wristwatch that still has...Ch. 9 - 9-79 Americium-241, which is used in some smoke...Ch. 9 - 9-80 On rare occasions, a nucleus will capture a...Ch. 9 - 9-81 A patient is reported to have been irradiated...Ch. 9 - 9-82 What is the ground state of a nucleus?Ch. 9 - 9-83 Explain the following: (a) It is impossible...Ch. 9 - 9-84 Yttrium-90, which emits beta particles, is...Ch. 9 - 9-85 The half-lives of some oxygen isotopes are as...Ch. 9 - 9-86 is effective in prostate cancer therapy when...Ch. 9 - 9-87 When is bombarded with a new element and six...Ch. 9 - 9-88 Americium-241, the isotope used in smoke...Ch. 9 - 9-89 Boron-10, an effective absorber of neutrons,...Ch. 9 - 9-90 Tritium, is a beta emitter widely used as a...Ch. 9 - 9-91 Radon-222 decays to a stable nucleus by a...Ch. 9 - 9-92 Neptunium-237 decays by a series of steps to...Ch. 9 - 9-93 Thorium-232 decays by a 10-step process,...

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