Exercise
https://texercises.com/exercise/beryllium-on-leaf-of-a-plant/
Question
Solution
Short
Video
LaTeX\LaTeX
Need help? Yes, please!
The following quantities appear in the problem: Masse mm / Aktivität AA / molare Masse MM / Stoffmenge nn / Zerfallskonstante λ\lambda / Anzahl NN /
The following formulas must be used to solve the exercise: A=λNA = \lambda \cdot N \quad m=nMm = nM \quad
No explanation / solution video to this exercise has yet been created.

Visit our YouTube-Channel to see solutions to other exercises.
Don't forget to subscribe to our channel, like the videos and leave comments!
Exercise:
Beryllium- is produced in the upper atmosphere and filters down onto the Earth's surface. Formelbuch It decays with a half-life of about TO. Estimate the initial mass of isotopeBe on the leaf of a plant if it is detected to have num decays per second.

Solution:
Geg T TO T A A Gesmassmsikg The detected activity of AO means that there are N fracAlambda fracAfracln T fracT Aln fracAlam fracln AT N n fracNsscNA fracT AlnsscNA n Beryllium- isotopes present on the leaf. Because one of them has meO mass there are m N m_ fracTAln m_ N me mb approx mbS on the leaf. Alternatively you can also compute the mass by knowing the molar mass to be MO the calculation then gives: m nM fracTAln sscNA M n M m approx mS m fracT A MlnsscNA fracm_T A ln mS
Meta Information
LaTeX\LaTeX-Code
Exercise:
Beryllium- is produced in the upper atmosphere and filters down onto the Earth's surface. Formelbuch It decays with a half-life of about TO. Estimate the initial mass of isotopeBe on the leaf of a plant if it is detected to have num decays per second.

Solution:
Geg T TO T A A Gesmassmsikg The detected activity of AO means that there are N fracAlambda fracAfracln T fracT Aln fracAlam fracln AT N n fracNsscNA fracT AlnsscNA n Beryllium- isotopes present on the leaf. Because one of them has meO mass there are m N m_ fracTAln m_ N me mb approx mbS on the leaf. Alternatively you can also compute the mass by knowing the molar mass to be MO the calculation then gives: m nM fracTAln sscNA M n M m approx mS m fracT A MlnsscNA fracm_T A ln mS
Contained in these collections:
  1. 3 | 14
  2. 4 | 21


Attributes & Decorations
Tags
dating, physics, radioactivity, radiodating
Content image
Difficulty
(3, default)
Points
5 (default)
Language
ENG (English)
Type
Calculative / Quantity
Creator uz
Decoration
File
Link