The molar mass of a substance is the mass of one mole of that substance. What is the unit of molar mass? A. g/mol B. mol/g C. L/mol D. mol/L 相关知识点: 试题来源: 解析 A。本题考查摩尔质量的单位。摩尔质量是指单位物质的量的物质所具有的质量,单位是克每摩尔(g/mol)。选项 B...
Calculate the mass and charge of one mole of electrons. Given: Mass of one electron = 9.10×10−31 kg Charge of one electron = 1.602×10−19 coulomb Solution Verified by Toppr Mass of 1 mole of electrons: 9.10×10−31×6.023×1023=5.486×10−7 kg Charge of 1 mole of electro...
Mass of one mole of protons 1.672xx10^(-24)xx6.023xx10^(23)gm =1.008 gm Mass of one mole of electrons =9.1xx10^(-28)xx6.023xx10^(23)gm =0.55xx10^(-3)gm=0.55mg
Molar mass is the mass of one mole of a substance. M = m n It is normally expressed in units of g mol-1, in which case its numerical value is identical with the relative molecular mass.Citing this page: Generalic, Eni. "Molar mass." Croatian-English Chemistry Dictionary & Glossary...
(c)one mole of carbon dioxide,CO2(d)two mole of silver,Ag(e)0.2 moles of silver,Ag 相关知识点: 试题来源: 解析 a)6x10^23即是1mol,即1mol原子的氧元素.质量为16*1=16gb)1mol氧原子的氧气质量为 16*1=16gc)1mol的CO2 ,即44*1=44gd)2mol的Ag,108*2=216ge)0.2*108=21.6g ...
Molar mass is the mass of one mole of a substance. We determine the molar masses from values on the periodic table. Answer and Explanation: Before we can sum all of the molar mass of the elements in acetic acid we need the chemical formula of acetic acid. Acetic acid's chemical formula...
of each element by the number of atoms of that element in the compound. Sample answer: Given: amount of calcium chloride, n CaCl 2 = 1.00 mol Required: molar mass of calcium chloride, Solution: Step 1. Look up the molar masses of the elements that are in the substance. ...
Molar mass is the mass of one mole of substance, and has dimensions MN−1. Molar mass is routinely referred to as molecular weight, although the molecular weight of a compound is a dimensionless quantity calculated as the sum of the atomic weights of the elements constituting a molecule of...
Calcium phosphate, Ca3(PO4)2, is an ionic compound and a common anti-caking agent added to food products. What is the formula mass (amu) of calcium phosphate? Answer:310.18 amu The Mole The identity of a substance is defined not only by the types of atoms or ions it contains, but by...
One mole of a substance has a mass （equals）_to its relative formula mass in grams, contains （identical) atoms, molecules or formula units.