【解析】mole,中文就是摩尔,是物质的量的单位,一摩尔代表6 02*10^(23) , (6.02*10^(23) 是12g碳12中所含的碳原子的个数)mole mass(摩尔质量),就是1mol物质的质量,单位就是克(比如氯化镁的摩尔质量就是 6.02*10^(23)个氯化镁分子的质量)摩尔质量在数值上就等于分子量(或原子量),只不过后者没有单位...
The molar mass and molecular weight of MgCl2·2H2O is 131.242. EditElemental Percent Composition Convert MgCl2*2H2O From Moles to Grams Molesmol Convert to Grams and Molecules Convert MgCl2*2H2O From Grams to Moles and Molecules Weightg
190.422 g/mol (MgCl2)2的摩尔质量和分子量为{1,数字}。 由(MgCl2)2组成 元素标志原子质量原子#质量百分比 錳 Mg 48.61 g/mol 2 25.5275% 氯 Cl 141.812 g/mol 4 74.4725% (MgCl2)2 元素 质量百分比氯141.812g氯141.812g錳48.61g錳48.61g (MgCl2)2 原子#氯4氯4錳2錳2 🛠️ 计算摩尔质量 指令...
mole mass(摩尔质量),就是1mol物质的质量,单位就是克(比如氯化镁的摩尔质量就是6.02*10^23个氯化镁分子的质量)摩尔质量在数值上就等于分子量(或原子量),只不过后者没有单位)这样,MgCl2的摩尔质量就是24+35.5*2=95克mol和克的单位是不同的,题目的意思是让你计算2.15 mol MgCl2的质量,那就是95*2.15克第二...
mole mass(摩尔质量),就是1mol物质的质量,单位就是克(比如氯化镁的摩尔质量就是6.02*10^23个氯化镁分子的质量)摩尔质量在数值上就等于分子量(或原子量),只不过后者没有单位)这样,MgCl2的摩尔质量就是24+35.5*2=95克mol和克的单位是不同的,题目的意思是让你计算2.15 mol MgCl2的质量,那就是95*2.15克第二...
The nitrate removal efficiency increased by increasing of initial nitrate concentration in a constant molar ratio of Mg/NO. The removal efficiencies of nitrate by the modified pumice at the initial pH of 3, 6.5 and 10 (when pH kept under control) were 49%, 29% and 16%, respectively. By ...
The mass percentage can be calculated by finding the ratio of the element to the total mass of the compound multiplied by 100 to express it in percentage. Answer and Explanation: Important molar mass: H2O:18.016gmol MgCl2⋅5H2O:185.291gmol To determine the......
What is the total molar concentration of all the ions in 0.020 M solutions of the following salts in water? a. 0.020 M KCl. b. 0.020 M CuSO_4. c. 0.020 M CaCl_2. What is the concentration of the cation that precipitates first, when the other ...
heats of dilution; heats of dissolution; double salts; carnallite like salts; relative partial molar properties; calorimetry; X-ray crystallography1. Introduction With the fast development of the theoretical and calculation methods, the need of the fundamental properties of the compounds arises. The ...
If the boiling point increases by 0.203 degrees C, what is the molar mass of the solute? The boiling point elevation constant for water is 0.512 degrees C/m. a. 33.4 g/mo What is the boiling point of a solution containing 24...