And this question is PRECISELY AKIN to asking............
"How many eggs are there in a dozen eggses.......?"How many eggs are there in a dozen eggses.......?
So.............
"How many oxygen atoms are there in a mole of ethyl alcohol....?"How many oxygen atoms are there in a mole of ethyl alcohol....?
....................."H"_3"CCH"_2"OH"...................
Why, "ONE MOLE" because in a 46*g mass of ethyl alcohol, there is a 16*g mass of oxygen atoms. And there are in addition "2 MOLES" of "carbon atoms"; and "8 MOLES" of "hydrogen atoms" in that molar quantity of ethanol...... And the combined masses of these elements is approx. 46*g. Are you with me?
A mole specifies "Avogadro's no." of atoms, 6.022xx10^23*mol^-1. Why do we use such an ABSURDLY large number? Because it is the link between the sub-micro world of atoms and molecules, to the macro world of grams, kilograms, and litres....... One "mole of" ""^1H "atoms" of "hydrogen atoms", ""^1H, has a mass of 1*g. One "mole of" ""^12C "atoms", ""^12C, has a mass of 12*g. And one "mole of" ""^16O "atoms", ""^16O, has a mass of 16*g. And one "mole of" of ethanol molecules, C_2H_5OH, has a mass of 46*g......This mass equivalence is why we use the mole.
Are you following me?
"So how many eggses are there in a dozen eggs........?"
