What is the difference between gravimetric and volumetric analysis? Given an example each for each of these techniques.

Gravimetric analysis and volumetric analysis are two common techniques used in analytical chemistry to determine the concentration or composition of a substance in a sample. They differ in how they measure the analyte and their principles of operation:

1. Gravimetric Analysis:

   • Gravimetric analysis involves measuring the mass of a substance to determine its concentration or composition. It relies on the principle that the mass of a compound is directly proportional to the amount of a specific element or compound present in the sample.
   • Precipitation reactions are commonly used in gravimetric analysis. In this method, a reagent is added to the sample ___ _________ _________ _______ ___.
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