Applications in quantitative analysis
UV–Visible Spectroscopy · Chemistry
Molecule viewer
Interactive 3DBall-and-stick models with true bond angles — switch molecule to compare shapes.
Controls
Drag the sliders or type a value — the simulation updates live.
Study notes
Choose: estimate iron in water at 0.05 ppm — titration or AAS? Step 1: 0.05 ppm = trace level — titrations can't see this low. Step 2: AAS (atomic absorption): aspirate sample into flame, measure Fe absorption. Step 3: Calibration with Fe standards → precise trace reading. Step 4: Trace levels demand instruments — sensitivity decides!