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- https://chem.libretexts.org/Ancillary_Materials/Worksheets/Worksheets%3A_Analytical_Chemistry_II/Elemental_Analysis_of_Ancient_Roman_CoinsUse “linear with zero intercept”. Enter the concentrations of your standard solutions. (Do not include the 0 as a “standard”. The PE software calls this the “blank” and prompts you for it separately f...Use “linear with zero intercept”. Enter the concentrations of your standard solutions. (Do not include the 0 as a “standard”. The PE software calls this the “blank” and prompts you for it separately from the standards.) Set to do four replicate measurements with 3 sec integration time and 5 second delay. Using the concentrations determined by the instrument for the solution containing the coin digest, determine the % Cu and Pb in your coin.
- https://chem.libretexts.org/Bookshelves/Inorganic_Chemistry/Supplemental_Modules_and_Websites_(Inorganic_Chemistry)/Chemical_Reactions/Stoichiometry/Chemical_FormulasFrom a chemical point of view, an element contained in the substance is a fundamental question, and we represent the elemental composition by a chemical formula, such as H2O for water. Thus, ...From a chemical point of view, an element contained in the substance is a fundamental question, and we represent the elemental composition by a chemical formula, such as H2O for water. Thus, from the weight of CO2 and H2O produced by burning a definite amount of the substance, you can figure out the percent of C and H in the compound.
- https://chem.libretexts.org/Bookshelves/Analytical_Chemistry/Analytical_Chemistry_2.1_(Harvey)/08%3A_Gravimetric_Methods/8.03%3A_Volatilization_GravimetryVolatilization gravimetric methods involve decomposing a sample thermally or chemically and measuring the resultant change in mass. This approach is essential where a volatile species is released. The...Volatilization gravimetric methods involve decomposing a sample thermally or chemically and measuring the resultant change in mass. This approach is essential where a volatile species is released. Thermogravimetry is used to monitor sample mass changes with temperature, aiding in identifying decomposition reactions. Equipment ranges from simple crucibles to complex setups for trapping volatile products.
- https://chem.libretexts.org/Bookshelves/Analytical_Chemistry/Analytical_Chemistry_2.1_(Harvey)/01%3A_Introduction_to_Analytical_Chemistry/1.03%3A_Common_Analytical_ProblemsTypical problems on which analytical chemists work include qualitative analyses (Is lead present in this sample ?), quantitative analyses (How much lead is present in this sample?), characterization a...Typical problems on which analytical chemists work include qualitative analyses (Is lead present in this sample ?), quantitative analyses (How much lead is present in this sample?), characterization analyses (What are the sample???s chemical and physical properties?), and fundamental analyses (How does this method work and how can it be improved?).
- https://chem.libretexts.org/Bookshelves/Analytical_Chemistry/Physical_Methods_in_Chemistry_and_Nano_Science_(Barron)/01%3A_Elemental_AnalysisThe purpose of elemental analysis is to determine the quantity of a particular element within a molecule or material.
