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LarryBear Group TitleBest ResponseYou've already chosen the best response.0
What is a dozen? It is 12 eggs or donuts etc.. But 12 atoms would be very, very few. So the number 6.02 * 10^23 has been chosen as the standard quantity of atoms or molecules. It is called a "mole". Originally it came from the number of particles in 22.4 liters of a gas at STP (standard temperature and pressure). It is the number of atoms in 1 gram of atomic Hydrogen or 2 times that number in 2 grams of molecular hydrogen. I hope this helps.
 9 months ago

AGPoN Group TitleBest ResponseYou've already chosen the best response.0
May I ask a followup question? If you have 1 mole of solid NaCl, does that mean one mole of ions (half a mole of Na+, and half a mole of Cl, making a mole of ions total) or does it mean one mole of the entire formula unit NaCl (which would add up to a mole of Na+ and a mole of Cl)?
 one month ago
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