khan academy chemistry class 12
The number 6022 10²³ is known as Avogadros number or Avogadros constant. I suggested Khan Academy because I remembered a few years ago trying out their math program and having the really useful placement test but now it isnt there and it seems like it would be quite a burden to go through every single math course to figure out for example what 5th grade math skills she needs to brush up on and what 7th grade skills etc etc.
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. Remember when you change the neutrons youre not changing the actual fundamental element. Whether youre a student teacher homeschooler principal adult returning to the classroom after 20 years or a friendly alien trying to get a leg up in earthly biology Khan Academys personalized learning library is available to you for free. So most of the carbon youll find-- if you just found carbon someplace on average its weight in atomic mass units is going to be 120107.
But that idea of an isotope is an interesting one. The concept of the mole can be used to convert between mass and number of particles. One mole of a substance is equal to 6022 10²³ units of that substance such as atoms molecules or ions.
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