Chapter 2, Problem 118SAE

Interpretation Introduction

Interpretation:

Concept map should be constructed for concepts explained in the sections 2.7 and 2.8.

Concept introduction:

The SI quantity that describes an amount of substance by relating it to the number of particles of that substance is called the mole(abbreviated mol). Amoleis the amount of a substance that contains the same number of elementary entities as there are atoms in exactly 12 g of pure carbon-12. The “numberof elementary entities (atoms, molecules, and so on)” in a mole is theAvogadro’s constant, N_A. Here,

$N_A=6.022140857\times {10}^{23}{\text{mol}}^{-1}$

The mass of one mole of atoms, called the molar mass, M.