Chapter 2, Problem 2.54QP

Interpretation Introduction

Interpretation:

Number of atoms in 6.30 moles of selenium Se has to be determined.

Concept introduction:

• A mole is $\text{6}\text{.022 }\times {10}^{23}$ of anything.
• $\text{6}\text{.022 }\times {10}^{23}$ Is known as Avogadro number.
• Atom is the smallest particle of a chemical element.
• The number of atom of a substance can be calculated by multiplying the Avogadro number with the moles of the given substance.

  $\text{Number}\text{of}\text{atoms}\text{=}\text{Moles}\text{of}\text{Substance}\text{×Avogadro}\text{Number}$