See, scientists knew the charge of one mole of electrons already, which is equal to a constant called one Faraday.

看，科学家们已经知道一摩尔电子的电荷，它等于一个称为法拉第的常数。

And the charge of one mole of electrons divided by the charge of one electron gives you the number of particles in a mole: 6.022 times 10 to the 23rd.

一摩尔电子的电荷除以一个电子的电荷得到一摩尔的粒子数：6.022 乘以 10 到 23。