Use the 1st order decay equation
<span><span>Cfinal</span>=<span>Cinitial</span><span>e<span>−kt</span></span></span>
by filling in and doing the math you will get:
<span> </span><span>Cfinal</span><span> = 1.11 grams Rn-222 after 23 days.
hope this helps
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I am not sure of the answer to this question right now, but I need to know if you remember me
Chemical is the answer why don’t you hook it up bro
<u>Answer </u><u>:</u><u> </u>
As Per Given Information
Given volume of O₂ is 53 L
We've been asked to find the number of moles of O₂ gas contained
For finding the number of moles the following formulae is use

Put the given value we obtain

So, the number of moles is 2.366 .