This number--called a mole--is a basic measuring unit in chemistry. Mole Day typically falls during National Chemistry Week. Students develop a new method of counting objects, called the PCU, and ...

A mole refers to the number of particles you have ... Without her, I never would have known that there were so many unique careers that involve chemistry. Make sure to check out all of her interviews ...

This video is about the mole, the unit of measurement for the number of particles in a substance. The mole is the unit for amount of substance. The number of particles in a substance can be found ...

This video is about the mole, the unit of measurement for the number of particles in a substance. The mole is the unit for amount of substance. The number of particles in a substance can be found ...

The spring ACS meeting prompted the usual flurry of blog posts, albeit possibly slightly reduced because of scarce internet connections in the venue. Katharine Sanderson blogged for Nature News at ...