The half life of tritium is 12.5 years what mass of tritium of initial mass 64 milligrams will remain undecayed after 50 years
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Answer:
The amount of Tritium of half life 12.5 years and initial amount 64 milligrams that remains after 50 years is 4 milligrams.
Explanation:
Step 1: First write down the formula for calculating the remaining amount given the original amount and half life.
A(t) = A0(½)^t/(t½)
Where :
A(t) = Amount at time t.
A0 = Initial amount
t½ = half life
t = time taken for the substance to decay.
Step 2 : Analyze the given information from the question.
Half life = 12.5 years
Initial amount = 64 milligrams
Time for decay = 50 years.
Step 3: Substitute this information in the above formula.
A(t) = 64 × (½)^50/12.5
= 64 × 1/16 = 4 milligrams.
The amount that remains after 50 years is 4 milligrams.
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