Krypton-85, or 85 Kr, has a half-life of 10.72 years. Imagine a sample of krypton-85 is prepared.

Fantastic news! We've Found the answer you've been seeking!

Question:

Krypton-85, or ⁸⁵Kr, has a half-life of 10.72 years. Imagine a sample of krypton-85 is prepared.

(a)What fraction of the sample will remain 4.80 yr after its preparation?

N/N0=

(b)What fraction of the sample will remain 10.8 yr after its preparation?

N/N0=

(c)What fraction of the sample will remain 107.2 yr after its preparation?

N/N0=

Related Book For answer-question

Introductory Chemistry Atoms First

ISBN: 9780321927118

5th Edition

Authors: Steve Russo And Michael Silver

See More Books

Posted Date: Apr 30, 2024 09:27 AM

See More Questions

The city of New Berlin is considering making several of its streets one-way. What is the maximum number of cars per hour that can travel from east to west? The network is shown inFigure. 2 5 0 0 2 2...
This assignment requires you to complete the 2022 tax reporting for a fictional woman named Anna Smith. Question 1 T1 - step 4 - line 66 This is Anna's taxable income Answer: Question 2 T1 - step...
Reading material Raymond Frost, Alexa K. Fox & Judy Strauss (2019). Product: The Online Offer. E-Marketing , 9, 206 - 228. Raymond Frost, Alexa K. Fox & Judy Strauss (2019). Price: The Online Value....
The slope of the long-run supply curve depends on whether the industry in question is a constant-cost, increasing-cost, or decreasing cost industry. 1. Explain what will happen in a constant-cost...
A survey of people in a given region showed that 20% were smokers. The probability of death due to lung cancer, given that a person smoked, was roughly 10 times the probability of death due to lung...
Solve Prob. 13-36 for member $A B$, which has a radius of 2 in. Data from Prob. 13-36 The members of the truss are assumed to be pin connected. If member $B D$ is an $\mathrm{A} 992$ steel rod...
Siblings Jordan and Morgan Hartley are partners in a trendy toy store called ToyMania! Jordan, as senior partner, receives an annual salary allowance of $20,000 and 60 percent of all income/losses...
We suggest you invest in a 3-year progressive rate investment certificate. The interest rate attached to it (compounded annually) increases each year. The interest rates offered are as follows, for...
All decisions require change to implement them. Consider an experience you have had in your work life that has involved the implementation of a decision. Explain how the decision was implemented. Was...
3. Consider a 1-dimensional pendulum of length and mass m oscillating around its equilibrium position, subject to the force of gravity. Let us denote the acceleration due to gravity as g. Show that,...
An LRC circuit is set up with an inductance of 1/6 henry, a resistance of 1 ohm, and a capacitance of 6/5 farad. Assuming the initial charge is 5 coulombs and the initial current is 3 amperes, find...
(Choose the correct answer) 2- The temperature coefficient (a) approximation is: a. 0.0875 PC b. 0.0875 C- c. 0.0035 C d. 0.0035 C-* -40 Resistance (ohms) 3 -20 32- 31- 30 29 28 27 25- 24- 23- 22-...
1.The potential energy of a system of two atoms is given by the relation: B + 7.10 J A stable molecule is formed with the release of 8 eV energy when the interatomic distance is 2.8A. Find A&B and...
A hungry 750 N bear walks out on a beam in an attempt to retrieve some "goodies" hanging at the end (Fig. P8.20). The beam is uniform, weighs 200 N, and is 6.00 m long, the goodies weigh 85.0 N. 60.0...
JST Services employs 50 workers who are each paid $900 per week. JST allows each employee two weeks of paid vacation per year. In addition, the company allows each employee one week of paid sick...
Prove that the mean heat capacities C P H and C P S are inherently positive, whether T > T 0 or T < T 0 . Explain why they are well defined for T = T 0 .
Of the following, which is the most comprehensive definition of a project? a. An environment created to deliver a product, service, or result. b. A collaborative enterprise that delivers a product,...
How do project management and quality management complement each other? a. Both focus on continuous improvement, management responsibility, customer satisfaction, and prevention over inspection. b....
When creating a project management plan, which of the following is the best choice to create it? a. Project manager b. Project manager and team c. Team d. Sponsor

Krypton-85, or 85 Kr, has a half-life of 10.72 years. Imagine a sample of krypton-85 is prepared.

Question:

Expert Answer:

krypton85 decays with a halflife of 1072 years We can use this information to calculate the remainin... View the full answer

Introductory Chemistry Atoms First

Students also viewed these physics questions