Chapter 2, Problem 2.56QP

Interpretation Introduction

Interpretation:

Number of moles of strontium (Sr) atom in 93.7 g of Sr 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.
• Molar mass of an element is the mass in gram of one mole of the element. Unit of molar mass is expressed in grams per mole g/mol.
• Atom is the smallest particle of a chemical element.

                         $\text{Number}\text{}\text{}\text{}\text{of}\text{}\text{mole}\text{=}\frac{\text{Given}\text{}\text{mass}}{\text{Molar}\text{mass}}$