Chapter 6, Problem 6.20AP

Interpretation Introduction

Interpretation:

The moles of a substance should be determined along with the number of molecule present in 1 mol of a molecular compound.

Concept Introduction:

Mole Definition:

• The mole of a substance is defined as “the amount of a substance whose mass in grams is numerically equal to its molecular or formula weight“
• A mole is a quantity of particles defined as Avogadro’s number of particles or formula units of elements or compounds.
• The molecular or formula weight of a compound is the sum of the mass of all atoms in the formula.
• A mole also happens to be 22.4 L of an ideal gas under standard conditions, so 22.4 L of ideal gas represent one gram formula weight of the compound.

Avogadro’s number:

The number of atoms or molecules in one mole of a substance, equal to.  It is the molecular weight in gram equal to $\text{6}{\text{.023×10}}^{\text{23}}\text{molecules}$.