This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: The isotope, tritium, has a half-life of 12.3 years. Assume we have 10 kg of the substance. How much ... (Read 127 times)

Metfan725

  • Hero Member
  • *****
  • Posts: 552
on: Jul 28, 2018
The isotope, tritium, has a half-life of 12.3 years. Assume we have 10 kg of the substance. How much tritium will be left after 30 years?
 a. 0.20 kg
  b. 1.8 kg
  c. 0.18 kg
  d. 1.7 kg
  e. 4.1 kg

Question 2

The isotope, tritium, has a half-life of 12.3 years. Assume we have 10 kg of the substance. What will be the initial decay rate, at t = 0 (in decays/s)?
 a. 1.09  1014
  b. 1.8  10-9
  c. 5.6  108
  d. 3.6  1018
  e. 3.6  1017


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

alvinum

  • Sr. Member
  • ****
  • Posts: 317
Reply #1 on: Jul 28, 2018
Answer to Question 1

B

Answer to Question 2

D


Metfan725

  • Hero Member
  • *****
  • Posts: 552
Reply #2 on: Jul 28, 2018
Both answers were spot on, thank you once again


alvinum

  • Sr. Member
  • ****
  • Posts: 317
Reply #3 on: Jul 28, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

In 1835 it was discovered that a disease of silkworms known as muscardine could be transferred from one silkworm to another, and was caused by a fungus.

Did you know?

Asthma is the most common chronic childhood disease in the world. Most children who develop asthma have symptoms before they are 5 years old.

Did you know?

Essential fatty acids have been shown to be effective against ulcers, asthma, dental cavities, and skin disorders such as acne.

Did you know?

About 60% of newborn infants in the United States are jaundiced; that is, they look yellow. Kernicterus is a form of brain damage caused by excessive jaundice. When babies begin to be affected by excessive jaundice and begin to have brain damage, they become excessively lethargic.

Did you know?

Parkinson's disease is both chronic and progressive. This means that it persists over a long period of time and that its symptoms grow worse over time.

The web of life The web of life
Ascomycetes Life Cycle Ascomycetes Life Cycle
Still Life with Eggs and Thrushes, Villa of Julia Felix, Pompeii. Still Life with Eggs and Thrushes, Villa of Julia Felix, Pompeii.
In pretend play, toy figures and animals “come to life” and interact with each other. In pretend play, toy figures and animals “come to life” and interact with each other.
Life Table for an Annual Plant Cohort Life Table for an Annual Plant Cohort
Chlamydomonas Life Cycle Chlamydomonas Life Cycle
Video: Phases of an Action Potential - Resting Potential, Threshold, Rising, Falling, & Recovery Phases

For a complete list of videos, visit our video library