Chapter 25.9, Problem 3Q

Interpretation Introduction

Interpretation:

The amount of $NaTc{O}_{4}in1.0\mu g$ of salt and the mass of $Tc$ in it has to be determined.

Concept introduction:

•                   $\text{Number}\text{of}\text{mole}\text{=}\frac{\text{Given}\text{mass}\text{of}\text{the}\text{substance}}{\text{Molar}\text{mass}}$
• The molar mass of an element or compound is the mass in grams of 1 mole of that substance, and it is expressed in the unit of grams per mol (g/mol).
• $\text{Mass}\text{of}\text{the}\text{substance}\text{=}\text{Amount}\text{of}\text{the}\text{substance}\text{×}\text{Molar}\text{mass}$