Question

For an element, how does Avogadro’s number connect the atomic and macroscopic scales?(1 point)

Responses

It describes the number of atoms in 1 gram of an element.
It describes the number of atoms in 1 gram of an element.

It describes the number of moles in 1 gram of an element.
It describes the number of moles in 1 gram of an element.

It describes the number of atoms in 1 mole of an element.
It describes the number of atoms in 1 mole of an element.

It describes the number of grams in 1 mole of an element

Answer 1

It describes the number of atoms in 1 mole of an element.

Step-by-step explanation:

Avogadro's number is simply a definition of a very large number. It is called a mole. It has no physical units. It simply means 6.02x10^23 of something. Anything. Atoms, molecules, paper clips, dollars, school buses, people waiting in line for a concert, etc. Anything. Similar words include billion, trillion, quintillion, picometer (look it up) and similar shorthand for very large numbers. "Santa received 1.8 moles of letters this past year" is an easier way of saying that he received 1,080,000,000,000,000,000,000,000 (or 1.08x10^24) letters. Publishers didn't like the idea that science books may be cluttered with such nonsense. And scientists have more fun things to do than wrtite out such long numbers [correctly], so the mole was invented. It's relationship to the Periodic Table and concept of molar mass is it's true value, but that isn't aksed in this question.