A) \[4\,\,g\]
B) \[8\,\,g\]
C) \[16\,\,g\]
D) \[2\,\,g\]
Correct Answer: A
Solution :
\[{{t}_{1/2}}=6\min \] \[{{N}_{0}}=32\,\,g\] Total time\[=18\min \] \[\frac{N}{{{N}_{0}}}{{\left( \frac{1}{2} \right)}^{n}}\] \[n=\frac{Total\,\,time}{Half-life}=\frac{18}{6}=3\] \[\frac{N}{32}={{\left( \frac{1}{2} \right)}^{3}}\] \[\frac{N}{32}=\frac{1}{8}\] \[N=\frac{32}{8}=4\,\,g\]You need to login to perform this action.
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