What is a moleYouTube↗  IA↗(long shot)
Education  102.4K views 1K likes 41 dislikes   16 Mar 2014
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in this video you will learn what a mole is and white chemist working moles a mole is quite simply a specific number in life we might ask for twelve or one
dozen eggs or a pair of socks for two or a ream of 500 sheets of paper a mole is exactly the same it's just a number and is specifically 6.02 times 10 to the 23
¿Qué
we could have a mole of eggs a mole of socks or even one mole of sheets of paper however in chemistry we normally use it
to represent atoms or molecules this is because atoms are so small it's just a convenient term to represent massive numbers and a mole is a massive number
es un lunar en este video puedes aprender más sobre un
it's six zero two with another 21 zeroes
after it just to give you an idea of how huge this number is if you took one mole of marbles they would not only cover the entire Earth's surface but they would
lunar, la definición de mol Alguna
cover it to a depth of near 3.5 kilometers deep as you can see a mole is a mind-blowingly large number and the reason for this is that atoms are just
so incredibly small in a half liter bottle of water there will be just over 25 moles of water molecules pause this video now and use a calculator to try
and work out the number of atoms in 25 moles of water remember one mole
contains 6.02 times 10 to the 23 molecules of water hopefully you got the answer of 1.50 5 times 10 to the 25 it is 25 moles multiplied by 6.02 times 10
vez se preguntó qué 'topos' y por qué los
to the 23 you can learn more about this in our video on Avogadro's number now you can see why we use the term mole it is just a convenient way to quantify
huge numbers it's much easier to talk about two moles of sodium rather than 1.20 four times 10 to the 24 atoms of sodium and it's much easier to mention
half a mole of water rather than 3.01 times 10 to the 23 water molecules so what exactly does one mole of atoms or molecules weigh well this just depends
on how big your atoms are just because
we've the same number of atoms in one mole it does not mean that they are all the same size for example you're probably aware that hydrogen atom is
químicos
much smaller than a heavy gold atom so one mole of gold will weigh much more than one mole of hydrogen just in the same way that a dozen eggs would weigh
more than one dozen grains of rice we
will look in more detail at calculating the mass of moles in our next video on using moles now at the end of this video you should understand that the mole is
utilizan
just a number you should know that this number is avocados number 6.02 times 10
to the 23 and you should have an appreciation that this is a very large number indeed
topo en la química
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