Substance A has atomic mass number 16 and half life of 1 day. Another substance B has atomic mass number 32 and half life of 
day. If both A and B simultaneously start undergo radio activity at the same time with initial mass 320 g each, how many total atoms of A and B combined would be left after 2 days.
Text Solution
Verified by ExpertsThe correct answer is:
A
(N 0 )A = 
= 20 moles
(N 0 )B = 
=10 moles
Total N = 5.625
No. of atoms = 5.625 x 6.023 x 10 23 = 3.38 x 10 24
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