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In chemistry, equivalent weight (also known as gram equivalent [1] or equivalent mass) is the mass of one equivalent, that is the mass of a given substance which will combine with or displace a fixed quantity of another substance.
24 wrz 2024 · The mass of an acid or a base that will release or neutralize one gram molecule (mole) of hydrogen ion. A 1-mole solution of H2SO4 contains 2 gram equivalents. A thousandth of a gram equivalent weight is a millequivalent.
18 sie 2020 · To find the gram equivalent weight, you need to know how many hydrogen ions (H + or H 3 O +), hydroxide ions (OH –), or electrons (e –) are transferred in a reaction or you need to know the valence of the chemical species.
8 mar 2020 · The general number of equivalents formula is. E = MW/charge number. Where MW is the molecular weight of the compound and charge number is the number of proton- or hydroxide-equivalents the compound contains. Examples with different acids and bases help illustrate how this works in practice.
19 kwi 2024 · Equivalent weight is defined as the ratio of the molecular weight of the solute to the valency of the solute. The equivalent weight of the substance varies according to the reaction it undergoes. The normality of the solution is calculated using the equivalent weight of the substance.
24 sty 2016 · Definition of Equivalent Weight (also known as equivalent mass): The simplest definition of equivalent mass I can think of is the following: The mass of a compound which will combine with 8g of oxygen or 1g of hydrogen is said to be the equivalent weight of the compound. Lets take an example, $\ce{2Ca + O2 -> 2CaO}$
27 lip 2024 · Normality is a unit of concentration of a chemical solution expressed as gram equivalent weight of solute per liter of solution. A defined equivalence factor must be used to express concentration. Common units of normality include N, eq/L, or meq/L.
