Solution Found!

General, Organic, and Biological Chemistry: Structures of Life | 4th Edition | ISBN: 9780321750891 | Authors: Karen C. Timberlake
Change Question

A 120-mg sample of technetium-99m is used for a diagnostic

Chapter 4, Problem 67AQP

(choose chapter or problem)

Get Unlimited Answers
QUESTION:

A 120-mg sample of technetium-99m is used for a diagnostic test. If technetium-99m has a half-life of 6.0 h, how many milligrams of the technetium-99m sample remains active 24 h after the test?

Questions & Answers

QUESTION:

A 120-mg sample of technetium-99m is used for a diagnostic test. If technetium-99m has a half-life of 6.0 h, how many milligrams of the technetium-99m sample remains active 24 h after the test?

ANSWER:

Solution 67AQPHere, we have to calculate the milligrams of the technetium-99m sample remains active 24 h after the test.Step 1 of 2Radioactive decay:The spontaneous process of breaking down an atomic nucleus by releasing particles and energy.The Radioactive decay formulae can be written is as follows. N(t)= N0 ……………………….(1)Here, N(t) = The amount at time ‘t’N0 = The amount at time ‘0’T = Half -life_____________________________________________________________________________

Add to cart

Study Tools You Might Need

Chapter: 13 Problem: 42P

Physics for Scientists and Engineers: A Strategic Approach with Modern Physics 3
Problem 42P A starship is circling a distant planet of radius R. The astronauts find that the free-fall acceleration at their altitude is half the value at the planets surface. How far above the surface are they orbiting? Your answer will be a multiple of R.

Chapter: 2 Problem: 2.11

Organic Chemistry, 9
Give the structures and IUPAC names of all the C5H11 alkyl groups, and identify them as primary, secondary, or tertiary, as appropriate. Sample Solution Consider the alkyl group having the same carbon skeleton as (CH3)4C. All the hydrogens are equivalent; replacing any one of them by a potential poin

Chapter: 5 Problem: 36

Organic Chemistry 7
What is each compounds systematic name? a. CH3CH2CHCH CHCH2CH2CHCH3 Br Br c. CH3 CH3 e. CH3 b. CH3 CH2CH3 CH2CH2CHCH3 C CH3CH2 C H3C d. CH2CH3 CH2CH2CH2CH3 C H3C C H3C f. CH3 CH2CH3

Chapter: 8 Problem: 2

Biology: The Dynamic Science 4
n which organelle does photosynthesis take place in plants? Where in that organelle are the two stages of photosynthesis carried out?

Chapter: 1 Problem: 16

Principles of Accounting, Volume 1: Financial Accounting
The Dow Jones Industrial Average (DJIA) is often cited as a key metric for business activity. The average is a mathematical formula that uses the stock prices of thirty companies traded on the New York Stock Exchange (NYSE) and the National Association of Securities Dealers Automated Quotation (NASDA

Chapter: 3 Problem: 35

Principles of Accounting, Volume 1: Financial Accounting
Unearned service revenue occurs when which of the following occurs? A. company receives cash from a customer before performing the service B. company pays cash before receiving a service from a supplier C. company pays cash after receiving a service from a supplier D. company receives cash from a cus

Chapter: 9 Problem: 21

Biochemistry 9
What is propeller twist?

Not The Solution You Need? Search for Your Answer Here:

×

Login

Login or Sign up for access to all of our study tools and educational content!

Forgot password?
Register Now

×

Register

Sign up for access to all content on our site!

Or login if you already have an account

×

Reset password

If you have an active account we’ll send you an e-mail for password recovery

Or login if you have your password back