level: Chemical Analysis
Questions and Answers List
level questions: Chemical Analysis
| Question | Answer |
|---|---|
| What are Instrumental Methods? | -Simply using Machines, to get a Task done, in this case, its Finding and Identifying Elements and Compounds |
| What are the Advantages of using Instrumental Methods? | -Very Sensitive: Even a Tiny amount of substance can still be Picked up -Very Fast, and can even be Automated -Very Accurate: No room for Human Error, as its all the Machine doing |
| Name some Examples on how Scientists use Machines to Analyse and Identify Chemicals and Samples | -Infrared Spectroscopy: This simply makes a Graph, which shows the Frequencies on Infra Red that a Molecule will Absorb, or Transmit. The Pattern on the Graph can help Identify Molecule -UV Spectroscopy: Same as Infra Spec, but using UV Light -Gas Chromatography: This is used to Separate Chemicals in the Mixture, which will make a Chromatogram -Mass Spectroscopy: This is a Technique that can be used to find the Relative Molecular Mass of a Mystery Compound. |