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...
What is the molar mass of NaCl? What is the molar mass of Ag2SO4? What is the molar mass of trinitrotoluene(TNT), C7H5(NO2)3? What is the molar mass of Ag? What is the molar mass of methanol? What is the molar mass of oxygen gas?
according to the equation and their mole ratio see which one is in excess. i'll show you by Q.23. Q. 23 no. of mole of Mg = mass / molar mass = 4.00/24.3 = 0.1646 mole no. of mole of oxygen = mass / molar mass = 3.2/(16x2) = 0.1 mole mole ratio of...
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
Suppose the chemists would have choosen 1020 as the number of particles in a mole, the mass of 1 mole of oxygen gas would be: A5.32×103 g B5.32×10−3 g C5.32×10−23 g D5.32×103 gSubmit Question 2 - Select One A mole is a collection of 6.022×1023 particles and the numb...
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...
What is the mass of(a)6x10^23 atoms of O(b)6x10^23 atoms of O2(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=16g b)1mol氧原子的氧气质量为 16*1=16g c...
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...
The inadequacy of oxygen as an arbitary standard led to the selection of the carbon-12 isotope of carbon as the arbitary standard. The relative atomic mass of an element is defined as the weight in grams of the number of atoms of the element contained in 12.00 g of carbon-12. ...
mole provides a vital link that allows scientists to connect the number ofparticlesin a substance to both the combinedmassof all those particles and the mass of each individual particle. As we’ve seen, the mole concept is useful for so much more than just referring to the amount of a ...