Why can't gravimetric analysis be used to determine the concentration of sodium nitrate (NaNO3) in a solution?a. Gravimetric analysis relies on the formation of a precipitate, which is then filtered and weighed. Sodium nitrate does not form a precipitate with any commonly used reagent, so it cannot be used for gravimetric analysis.
b. Sodium nitrate is a soluble salt, and gravimetric analysis is typically used for insoluble compounds.
c. Gravimetric analysis requires the formation of a pure and easily filterable precipitate, which is not possible with sodium nitrate.
d. Sodium nitrate does not undergo a chemical reaction that would allow for the formation of a precipitate suitable for gravimetric analysis.