Search results
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.
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.
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.
19 kwi 2024 · Equivalent weight is the mass of a substance that combines with or is equivalent to eight grams of oxygen or one gram of hydrogen in a chemical reaction. How is equivalent weight calculated? It is calculated by dividing the molecular weight by the valence (number of electrons transferred per molecule in the reaction).
18 sie 2020 · It is indicated by the symbol “N” or “eq/L” (equivalents per liter). 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.
21 maj 2024 · In acid-base chemistry, an equivalent weight is the mass of a chemical species that reacts with 1 mole of hydronium (H 3 O +) ions or 1 mole of hydroxide ions (OH-). In reduction-oxidation reactions, an equivalent weight is the mass of a substance that accepts or donates one mole of electrons.
24 sty 2016 · By definition, equivalent weight is the mass of the substance that would react with 1g of hydrogen. Therefore you must divide the mass by 2 to get equivalent weight. In fact, this formula based definition of equivalent weight of an element is identical with the definition mentioned earlier in this answer.
