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- https://chem.libretexts.org/Bookshelves/Introductory_Chemistry/Introductory_Chemistry_(CK-12)/03%3A_Measurements/3.13%3A_Percent_ErrorThis page discusses the role of resistors in electrical circuits for regulating voltage and current, emphasizing the significance of understanding their values and error ranges for equipment functiona...This page discusses the role of resistors in electrical circuits for regulating voltage and current, emphasizing the significance of understanding their values and error ranges for equipment functionality. It defines "accepted value" and "experimental value," and demonstrates how to calculate error and percent error using aluminum density as an example. As measurement accuracy diminishes, the percent error rises, indicating reduced precision.
- https://chem.libretexts.org/Bookshelves/Physical_and_Theoretical_Chemistry_Textbook_Maps/Physical_Chemistry_(Fleming)/05%3A_The_Second_Law/5.07%3A_The_Third_Law_of_ThermodynamicsThe page discusses the Third Law of Thermodynamics, emphasizing that a perfectly ordered crystal at 0 K has zero entropy. This is different from other thermodynamic functions like enthalpy, which requ...The page discusses the Third Law of Thermodynamics, emphasizing that a perfectly ordered crystal at 0 K has zero entropy. This is different from other thermodynamic functions like enthalpy, which requires an arbitrary reference point for zero. It introduces a formula to calculate absolute molar entropies using heat capacity and discusses the Debye Extrapolation method to estimate entropies and heat capacities near absolute zero K. An example with SiO??? is provided to demonstrate the calculation
- https://chem.libretexts.org/Bookshelves/Introductory_Chemistry/Introductory_Chemistry_(CK-12)/16%3A_Solutions/16.07%3A_Percent_SolutionsThis page discusses the variation in numerical recognition across cultures, noting that some do not count beyond three. It highlights American cultural practices in expressing solution concentrations,...This page discusses the variation in numerical recognition across cultures, noting that some do not count beyond three. It highlights American cultural practices in expressing solution concentrations, defining concentrated and dilute solutions, and explaining how concentrations can be represented in mass percent and volume percent. The page includes examples to illustrate methods for calculating these percentages.
- https://chem.libretexts.org/Bookshelves/Introductory_Chemistry/Introductory_Chemistry_(CK-12)/12%3A_Stoichiometry/12.01%3A_Everyday_StoichiometryThis page explores stoichiometry through a practical ham sandwich example, detailing how to calculate ingredient requirements using balanced equations. It highlights the role of stoichiometry in deter...This page explores stoichiometry through a practical ham sandwich example, detailing how to calculate ingredient requirements using balanced equations. It highlights the role of stoichiometry in determining reactant quantities and includes a problem-solving exercise for calculating pickles needed based on available ham slices. The text encourages reader engagement by introducing a smoothie-related example to further illustrate stoichiometric principles.
