3.011xx10^(22) molecules are removed from a vessel Containing 1680 cc of nitrogen at STP. How many moles are remaining ?

3.011xx10^(22) molecules are removed from a vessel Containing 1680 cc

1.	3.011xx10^(22) molecules are removed from a vessel Containing 1680 cc of nitrogen at STP. How many moles are remaining ?
Answer» <html><body><p></p>Solution :Number of <a href="https://interviewquestions.tuteehub.com/tag/moles-1100459" style="font-weight:bold;" target="_blank" title="Click to know more about MOLES">MOLES</a> of `N_(2)` originally present =`("volume")/("<a href="https://interviewquestions.tuteehub.com/tag/gmv-468789" style="font-weight:bold;" target="_blank" title="Click to know more about GMV">GMV</a>") = (1680)/(22400) = (3)/(40)` <br/> Number of moles of `N_(2)` removed = `("Number of <a href="https://interviewquestions.tuteehub.com/tag/molecules-563030" style="font-weight:bold;" target="_blank" title="Click to know more about MOLECULES">MOLECULES</a>")/("Avogadro number") = (3.011xx10^(22))/(6.022xx10^(23)) = (1)/(<a href="https://interviewquestions.tuteehub.com/tag/20-287209" style="font-weight:bold;" target="_blank" title="Click to know more about 20">20</a>)` <br/> Number of moles remaining `= (3)/(40)-(1)/(20) = (1)/(40) = 2.5xx10^(-2) = 0.025`</body></html>