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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.
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.
Gram Equivalent Weight is used to measure the amount of a substance that can react with or replace a certain number of hydrogen ions or electrons. It is calculated by dividing the molar mass of the substance by its valence. On the other hand, Gram Molecular Weight is used to measure the mass of one mole of a substance.
24 wrz 2024 · Overview. gram equivalent weight. Quick Reference. 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 H 2 SO 4 contains 2 gram equivalents. A thousandth of a gram equivalent weight is a millequivalent. See normal solution.
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.
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).
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.
