3 ms·
He's actually talking about 24! not 25!. (Maybe because the free square is in a fixed position?) 24! = 6.20e23; and Avogadro = 6.02e23.
by jonp 17y ago
He's actually talking about 24! not 25!. (Maybe because the free square is in a fixed position?)
24! = 6.20e23; and Avogadro = 6.02e23.