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  2. Stoichiometry - Wikipedia

    en.wikipedia.org/wiki/Stoichiometry

    Stoichiometry is also used to find the right amount of one reactant to "completely" react with the other reactant in a chemical reaction – that is, the stoichiometric amounts that would result in no leftover reactants when the reaction takes place. An example is shown below using the thermite reaction, [citation needed] Fe 2 O 3 + 2 Al → Al ...

  3. Amount of substance - Wikipedia

    en.wikipedia.org/wiki/Amount_of_substance

    The unit of amount of substance in the International System of Units is the mole (symbol: mol), a base unit. [1] Since 2019, the value of the Avogadro constant N A is defined to be exactly 6.022 140 76 × 10 23 mol −1. Sometimes, the amount of substance is referred to as the chemical amount or, informally, as the "number of moles" in a given ...

  4. List of materials properties - Wikipedia

    en.wikipedia.org/wiki/List_of_materials_properties

    A material property is an intensive property of a material, i.e., a physical property or chemical property that does not depend on the amount of the material. These quantitative properties may be used as a metric by which the benefits of one material versus another can be compared, thereby aiding in materials selection.

  5. Mixing ratio - Wikipedia

    en.wikipedia.org/wiki/Mixing_Ratio

    The mole ratio is also called amount ratio. [2] If n i is much smaller than n tot (which is the case for atmospheric trace constituents), the mole ratio is almost identical to the mole fraction . Mass ratio

  6. Law of multiple proportions - Wikipedia

    en.wikipedia.org/wiki/Law_of_multiple_proportions

    For example, if one tried to demonstrate it using the hydrocarbons decane (C 10 H 22) and undecane (C 11 H 24), one would find that 100 grams of carbon could react with 18.46 grams of hydrogen to produce decane or with 18.31 grams of hydrogen to produce undecane, for a ratio of hydrogen masses of 121:120, which is hardly a ratio of "small ...

  7. Yield (chemistry) - Wikipedia

    en.wikipedia.org/wiki/Yield_(chemistry)

    The ratio of the theoretical yield and the actual yield results in a percent yield. [8] When more than one reactant participates in a reaction, the yield is usually calculated based on the amount of the limiting reactant, whose amount is less than stoichiometrically equivalent (or just equivalent) to the amounts of all other reactants present ...

  8. 6 Essential Baking Ratios That You Should Know - AOL

    www.aol.com/6-essential-baking-ratios-know...

    Baked Good . Baking Ratio . Pie Dough. 3 parts flour: 2 parts fat: 1 part water. Muffins. 2 parts flour: 2 parts liquid: 1 part egg: 1 part fat. Quick Breads

  9. Void ratio - Wikipedia

    en.wikipedia.org/wiki/Void_ratio

    The void ratio of a mixture of solids and fluids (gases and liquids), or of a porous composite material such as concrete, is the ratio of the volume of the voids filled by the fluids to the volume of all the solids ().