mole

The amount of substance of a system that contains as many elemental entities (atoms, molecules, ions, electrons) as there are atoms in of carbon-12. A mole has atoms or molecules of the pure substance being measured.
Mathway के लिए जावास्क्रिप्ट और एक आधुनिक ब्राउज़र की ज़रूरत होती है।