Real-time display of formula number, theoretical formula weight, actual weight, proportioning error.───在线实时显示配方号,配方理论重量,实际配料重量,配料误差。 Formula weight : Sum of the atomic weights of all atoms in a chemical formula.───式量:化学术语,即某一化学式中所有原子的原子量之和...
formula weight, in chemistry, the sum of the atomic weights of all atoms appearing in a given chemical formula. It is generally applied to a substance that does not consist of individual molecules, such as the ionic compound sodium chloride. Such a substance is customarily represented by a ...
Elements in Number of atoms Atomic Total the compound of each element Weight Mass ——— Na 1 x 23.0 = 23.0 Cl 1 x 35.5 = 35.5 ——— Formula weight = 58.5 Although there are no units of the atomic and formula weights, the atomic weights are expressed in amu (atomic...
Define formula weight. formula weight synonyms, formula weight pronunciation, formula weight translation, English dictionary definition of formula weight. n. The sum of the atomic weights of all the atoms in a compound. American Heritage® Dictionary o
formula weight Definition offormula weight 1) The mass of one formula unit of a substance in atomic mass units. Share & Recommend Tweet
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atomic weight is a unitless value, relative formula mass technically does not have any units. However, grams are often used. When the relative formula mass is given in grams, then it is for 1 mole of a substance. The symbol for relative formula mass is Mr, and it is calculated by ...
美 英 un.〔化〕化学式量 网络分子量;相对分子质量;原子量 英汉 网络释义 un. 1. 〔化〕化学式量,分子量 例句 释义: 全部,〔化〕化学式量,分子量,相对分子质量,原子量
Fomula mass and molecular mass are two values that express the size of a molecule. Do you know the difference between formula mass and molecular mass? Theformula mass(formula weight) of a molecule is the sum of the atomic weights of the atoms in its empirical formula. ...
For example, an analysis of copper pyrite yields 34.64 percent Cu by weight, 30.42 percent Fe, and 34.94 percent S. Dividing these numbers by the atomic weights of Cu (63.55), Fe (55.85), and S (32.06), we obtain 0.545, 0.545, and 1.090, respectively. These numbers have the ratio 1...