Question
The half-life of Th-232 is 1.4E10. Find the number of disintegrations per hour emitted by 1 mol of Th-232.
Answers
bobpursley
1.4E10 what unit? days, hours, seconds?
DrBob222
k = 0.693/t<sub>1/2</sub> = approx 4.95E-11
Rate at time zero = k*N and for 1 mol Th, N will be 6.02E23 atoms.
Solve for R, which will be in disintegrations/year . Convert that to d/hour.
Rate at time zero = k*N and for 1 mol Th, N will be 6.02E23 atoms.
Solve for R, which will be in disintegrations/year . Convert that to d/hour.
Sandy
years
DrBob222
The assumption for my response was years.