Q. 104.2( 8 Votes )
Suppose all the e
Mass of water ,
Molar mass of water
Moles of water in 100g of water =
Number of electrons in 1 molecule of water = 2 times one electron each in hydrogen atom + 8 electrons in oxygen atom = 10 electrons
The relation between molar mass M, mass of sample m and number of moles of sample n is given by:
1 mol of “something” contains NA number of “something”.
Number of electrons in 1 mol of electrons =
Number of electrons in 100 g of water
Negative charge on one electron =
Total negative charge
Distance of separation,
By Coulomb’s law, the electric force is given by:
Where ϵ0 is the permittivity of free space
k is the electrostatic constant
q1 and q2 are the magnitude of charges
r is the distance of separation between the charges
The magnitude of electric force is:
Let my mass m be 70 kg.
The electric force between the two charges is about 1022 times my weight!
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