How is the mass number calculated for an element
2 answers:
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Answer:
is the rate constant for this reaction.
It will take to concentration to reach 12.5% of its original value.
Explanation:
A decomposition reaction follows first order kinetics:
Half life of the reaction =
Rate constant of the reaction = k
For first order reaction, half life and rate constant are linked with an expression :
is the rate constant for this reaction.
Initial concentration of reactant = = x
Final concentration of reactant after time t = = 12.5% of x = 0.125x
The integrated law of first order reaction :
t = 1,734.31 years =
It will take to concentration to reach 12.5% of its original value.