I agree completely with Just Keith's answer of the over complication of this video along with his great detail on the background and mathematics of the mole and atomic mass unit. I was just trying to show why 1 mole of amus equals 1g. Generally when working with Avogadro's number and the mass of a proton or neutron, you wouldn't substitute the values in. I suggest comparing line-by-line with the above example to see the similarities.Įxample 1: Let's determine the mass of 1 dozen eggs.Įxample 2: Show that 1 mole of 12C is 12g. I've included an example below showing the same concept to the above example but in a more familiar context. I also think they chose to invent the mole because the mass of a proton or neutron is such a small number that they needed a way to descibe the mass in quantities that we can work with. I think that 1 mole was chosen to be 6.02x10^23 so that when it was multiplied by the amu it would give a nice number like 1g (shown above). (Please note: Some of the numbers above have been approximated and rounded but for simplicity I've left that stuff out.)
Hi, this is the way I came to understand the concept of a mole.
0 kommentar(er)
