How long would it take to count all the atoms in

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Counting all the atoms in 12 grams of Carbon-12 at a rate of one atom per second would take an astronomical amount of time. There are approximately 6.022 x 10^23 atoms in a mole, which corresponds to the amount of Carbon-12 in 12 grams. To convert this into years, one must calculate the total seconds in a year by multiplying the number of seconds in a minute, minutes in an hour, hours in a day, and days in a year. This results in an estimated counting time of about 19 trillion years. The discussion emphasizes the vast scale of atomic quantities and the impracticality of counting them individually.
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How long would it take to count all of the atoms in 12 grams of Carbon-12, If you could only count one atom per second?
 
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Hint : How many grams of carbon 12 makes one mole? How many atoms is there in a mole?
 
hey, thanks a lot for your reply, yeah i know about Avagadro’s number but i am stuck on getting it into years, dividing it by how many seconds in a year?
 
It's easy to calculate the number of seconds in a year if you know the number of seconds in a minute, the number of minutes in an hour, the number of hours in a day and the number of days in a year.
 

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