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- https://chem.libretexts.org/Bookshelves/Introductory_Chemistry/Introductory_Chemistry_(CK-12)/02%3A_Matter_and_Change/2.15%3A_Chemical_Symbols_and_FormulasThis page discusses the use of symbolic notation in chess for tracking moves, drawing a comparison to how chemists use symbols and formulas for elements and compounds. It explains chemical symbols as ...This page discusses the use of symbolic notation in chess for tracking moves, drawing a comparison to how chemists use symbols and formulas for elements and compounds. It explains chemical symbols as abbreviations for elements and chemical formulas like H2O for compounds, noting some symbols' Latin roots. Additionally, it provides a summary of chemical symbols and formulas, complemented by review questions to enhance comprehension.
- 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)/16%3A_Appendix/16.11%3A__Acid_Dissociation_ConstantsThis page provides pKa and Ka values for a range of weak acids, derived from critical stability constants. The data is relevant for weak acids at 25??C and zero ionic strength unless specified otherwi...This page provides pKa and Ka values for a range of weak acids, derived from critical stability constants. The data is relevant for weak acids at 25??C and zero ionic strength unless specified otherwise. Weak acids are listed by their neutral compound names, with information about their fully protonated forms and successive dissociation constants for polyprotic acids. The relationship between Ka and Kb for conjugate acids and bases is noted.
- https://chem.libretexts.org/Bookshelves/Introductory_Chemistry/Introductory_Chemistry_(CK-12)/12%3A_Stoichiometry/12.06%3A_Mass-Volume_StoichiometryThis page discusses the role of sodium azide in airbags, emphasizing the need for precise amounts to ensure proper inflation without rupture. It also covers stoichiometry, focusing on mass-volume conv...This page discusses the role of sodium azide in airbags, emphasizing the need for precise amounts to ensure proper inflation without rupture. It also covers stoichiometry, focusing on mass-volume conversions and the molar volume of gases at STP. Examples illustrate calculations involving hydrogen from aluminum reactions and the mass of calcium oxide required for sulfur dioxide reactions, stressing the significance of correct mole ratios and significant figures in these scenarios.
