Mass Of 1 Mole Of Electron

Posted on 30-04-2021 by admin

Calculate The Total Mass Of 1 Mole Of Electrons Is Mass Of 1electron Equals 9 1 X 10 31kg Calculate the total mass of 1 mole of electrons is (mass of 1electron=9.1.10^-31kg) One mole is defined as the amount of substance having Avogadro’s number of particles mass of 1 electron 9.1 X 10¯³¹ kg.

How many moles of electrons are in one kilogram?

1 Answer

This mass is 1837 times heavier than an electron. Iv) Specific charge (e/m): It is 9.58 x 10 4 coulomb/gm (The value of e/m was maximum four hydrogen gas when taken inside the discharge tube. V) Mass of 1 mole of proton is nearly 1.007 mg. Vi) Charge on 1 mole. Blake H asked in Science & Mathematics Physics 1 decade ago If one electron weighs 9.0×10^−28 grams, what is the mass of one mole of electrons? 1.5 × 10−51 grams.

There are #1.823xx10^6' moles e'^-# in one kilogram of electrons.

Explanation:

In order to determine the number of moles of electrons in one kilogram, you need to first determine the number of electrons in one kilogram, and then convert the number of electrons to moles.

Known:
One electron (#'e'^-#) has a mass of #9.10938291xx10^(-31) 'kg'#.
One mole of #'e'^-'# is #6.022xx10^23' e'^-#.

Solution:

Determine the number of #'e'# in one kilogram

Divide #'kg e'^(-)'# by the mass of one electron. Do this by multiplying by #('1 e'^(-1))/(9.10938291xx10^(-31) 'kg')#
.
#1color(red)cancel(color(black)('kg e'^(-)))xx(1'e'^(-))/(9.10938291xx10^(-31)color(red)cancel(color(black)(' kg e'^(-))))=1.09776920xx10^30' e'^(-)'#

(Since 1 kg is an exact number and has an infinite number of significant figures, the number of significant figures in the answer is determined by the number of significant figures in the mass of an electron.)

Determine the number of moles of electrons in one kilogram.

#1.09776920xx10^30color(red)cancel(color(black)(' e'^(-)))xx(1'mol e'^(-))/(6.022xx10^23color(red)cancel(color(black)(' e'^(-1))))=1.823xx10^6' mol e'^(-)'#
(Since #6.022xx10^23# has only four significant figures, the answer has four significant figures.)

You can combine the two steps as follows: