Respuesta :
Explanation:
Half life = 12.3years
Time = 30 years
Basically half life is the amount of time taken for the intial concentration to be reduced to half.
First half life = 12.3 years = 10/2 = 5 Kg left
Second half life = 24.6 years= 5/2 = 2.5 Kg left
Third half life = 36.9 years = 2.5 / 2 = 1.25 Kg left
This means that after 30 years, the amount of tritium left would e betweem 1.25kg to 2.5 kg.
The number of tritium that will be left after 30 years is 1.844.
Calculation of the number of tritium left:
The isotope, tritium, has a half-life of 12.3 years. Assume we have 10 kg of the substance Also the number of years should be 30 years
So,
= 10*2^(-30/12.3)
= 1.844
Therefore, we can conclude that The number of tritium that will be left after 30 years is 1.844.
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