What mass of .^(226)Ra, whose t_(1//2)=1620 years will give the activi – InterviewSolution

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1.	What mass of .^(226)Ra, whose t_(1//2)=1620 years will give the activity of 1 millicuries ?
Answer» Solution :Activity `=(0.693)/(t_(1//2))XX(W)/(At.wt.)xx6.023xx10^(23)` `implies3.7xx10^(7)=(0.693)/(1620xx365xx24xx3600)xx(W)/(256)xx6.023xx10^(23)` `:.W=10^(-3)g`.

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