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...
(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)6x1023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 ...
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
12.01 g of carbon contains 6.02 x 10^23 carbon atoms. What is the mass in grams of 1.89 x 10^25 carbon atoms? How many grams of carbon, C, would contain the same number of atoms as 39.948 g of argon, Ar? What is the mass of 1 mole of atoms of carbon? What is the...
One carbon atom has the mass of 1.996 x 10−23gC. The molar mass of carbon is 12.01 g/mol. {eq}1\:atom\:C\times...Become a member and unlock all Study Answers Try it risk-free for 30 days Try it risk-free Ask a question Our experts can answer your tough homework and ...
(Chemistry) the ratio of the average mass per atom of the naturally occurring form of an element to one-twelfth the mass of an atom of carbon-12. Symbol: Ar Abbreviation: r.a.m. Former name: atomic weight Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © Harper...
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...
A mole represents a definite number of particles viz, atoms, molecules, ions or electrons. This definite number is called Avogadro number or Avogadro constant which is equal to 6.022×1023 Hence a mole represents 6.022×1023 particles of the substance. One mole of substance represents one gram-...
(Drews, 1998; Speight, 2015). This is distinct from therelative molecular massof a molecule, frequently referred to by the termmolecular weight, which is the ratio of the mass of that molecule to 1/12 of the mass of carbon 12 and is adimensionless number. Thus, it is incorrect to ...
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 View Solution Q2 The wavelength of electrons accelerated from rest through a potential difference of 40 kV is x×10−12m. The val...