The world's longest ongoing war. For more than 60 years, Karen rebels have been fighting a civil war against the government of Myanmar. In February 1949, members of the Karen ethnic minority launched an armed insurrection against Myanmar's central government.
In Chemistry the quantities of a dozen, a century, a gross, ream and millennium are far too small. Even a million is too small. One million atoms of iron weighs 0.0000000000000000928 grams! Chemistâs measure atomic particles using a large QUANTITY called the mole. One mole is equal to 602214179000000000000000 or 6.022 x 1023 particles.
Example: A single 12 C atom has a mass of 12 amu, and a mole of these atoms would have a mass of 12 grams. A mole of any atoms has a mass in grams equal to the atomic weight of the element. The term mole can be applied to any particle: atoms, a mole of atoms, a mole of ions, a mole of electrons, or a mole of molecules.