Calculate the total number of electrons …
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Posted by Rajnish Singh 6 years, 9 months ago
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Ankit Kumar 6 years, 9 months ago
we know that 1 molecule of water have (1*2+8=10) electrons.
no. of water molecules in 18gm of water is equal to avogadro number ie., 6.022*1023 H2O molecules.
100gm = 100*6.022*1023 / 18
we got no of molecules in 100 gm is 100*6.022*1023/ 18 H2O molecules.
thus number of electrons in 100gm of water ie., 100*6.022*1023/18 H2O molecules is = 100*6.022*1023*10/18 = 334.55*1023 electrons
charge on each electron is -1.9*10-19 coulomb
total charge = 334.55*1023*(-1.9*10-19);
total charge = 635.65*104 Coulomb.
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