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Anteil von Rubidium-Isotop

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Again, very vague... But the number should kind of represent the "work" required.

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That being said... How "difficult" is an exercise? It depends on many factors, like what was being taught etc.
In physics exercises, we try to follow this pattern:

Level 1 - One formula (one you would find in a reference book) is enough to solve the exercise. Example exercise

Level 2 - Two formulas are needed, it's possible to compute an "in-between" solution, i.e. no algebraic equation needed. Example exercise

Level 3 - "Chain-computations" like on level 2, but 3+ calculations. Still, no equations, i.e. you are not forced to solve it in an algebraic manner. Example exercise

Level 4 - Exercise needs to be solved by algebraic equations, not possible to calculate numerical "in-between" results. Example exercise

Level 5 -
Level 6 -

Exercise

https://texercises.com/exercise/anteil-von-rubidium-isotop/

Question

Solution

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The following quantities appear in the problem: Masse \(m\) / Aktivität \(A\) / molare Masse \(M\) / Stoffmenge \(n\) / Halbwertszeit \(T\) / Zerfallskonstante \(\lambda\) / Anzahl \(N\) / Verhältnis / Anteil \(\eta\) /

The following formulas must be used to solve the exercise: \(A = \lambda \cdot N \quad \) \(\eta = \dfrac{a}{A} \quad \) \(T = \dfrac{\ln 2}{\lambda} \quad \) \(m = nM \quad \)

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Exercise:
Robert Bunsen und Gustav Kirchhoff haben aus einem Kristall rund m Rubidium M extrahiert besteh aus dem stabilen isotopeRb sowie dem instabilen isotopeRb T Halbwertszeit. Daran wäre eine Aktivität von A festzustellen gewesen. Radioaktivität war aber zu dem Zeitpunkt noch unbekannt. Welchen Anteil Prozentsatz hat Rubidium- am gesamten vorkommen Rubidium?

Solution:
Geg m m mC T T TC A A AC GesAnteileta In der gesamten Rubidium-Probe findet man n fracmM fracmM n N nC Rubidium-Nuklide. Die Anzahl der aktiven Rubidium- Nuklide findet man über die Aktivität: N_a fracAlambda fracATln fracAClam N n_a NC Sie haben am gesamten Rubidium also folgen Anteil: eta fracN_aN fracfracATln fracmM sscNA fracNnC etA etACTT eta fracATMln m sscNA etACTT

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Tags	anteil, bunsen, isotop, isotope, kernphysik, kirchhoff, natürlich, nuklearphysik, physik, radioaktiv, radioaktivität, rubidium, verhältnis
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Difficulty	(3, default)
Points	3 (default)
Language	(Deutsch)
Type	Calculative / Quantity
Creator	uz
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