Question

32P is a radioactive isotope with a half-life of 14.3 days. If you currently have 92.3 g of 32p, how much 32P was present 3.00 days ago? TOOLS *10'

Answer 1

deca Relation between half life ( Tz) and reased constant a) for radioactive substrates is 5 here, Tm = 14.3 days. T. 0.699 no 0.693 days a 16.3 Now, for radioacitwity the relation is: N= Noe-nt. here, No 92.3, t= 3 days putting values: 10.699) (3) (92.3)= No e-(047) (3) 2) No=106.74 The amount remain ing 3 day се е по- 106.74 time anoint decreas NOTA with