What is the significance of using UV-Vis spectroscopy in qualitative analysis?
Practice Questions
Q1
What is the significance of using UV-Vis spectroscopy in qualitative analysis?
To measure the mass of ions
To identify the presence of colored ions
To separate ions based on size
To determine the boiling point of a solution
Questions & Step-by-Step Solutions
What is the significance of using UV-Vis spectroscopy in qualitative analysis?
Step 1: Understand what UV-Vis spectroscopy is. It is a technique that measures how much ultraviolet and visible light a substance absorbs.
Step 2: Learn that different substances absorb light at different wavelengths. This means each substance has a unique 'fingerprint' of absorbance.
Step 3: Recognize that colored ions absorb specific wavelengths of light, which can be detected using UV-Vis spectroscopy.
Step 4: Realize that by measuring the absorbance at these wavelengths, we can identify which colored ions are present in a sample.
Step 5: Conclude that UV-Vis spectroscopy is important in qualitative analysis because it helps scientists determine the composition of a sample based on its light absorption.
