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What is the total charge of all the electrons in 1.0 kg of h20?

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John McCann answered

Let's find out!

1.0 kg H2O (1000 g/1 kg)(1 mole H2O/18.016 g)(6.022 X 10^23/1 mole H2O)

= 3.34 X 10^25 atoms water

--------------------------------------Since hydrogen has one electron and there are two hydrogen.

2 * 3.34 X 10^25 atoms water

= 6.69 X 10^25 electrons of hydrogen

===================================Oxygen has eight electron, but only one oxygen atom per molecule.

8 * 3.34 X 10^25 atoms water/atoms O

= 2.67 X 10^26 electrons of oxygen

==================================Total electrons.

2.67 X 10^26 + 6.69 X 10^25

= 3.34 X 10^26 total electrons

==============================Charge on one electron times total electrons.

- 1.602 X 10^-19 coulomb * 3.34 X 10^26 total electrons

= - 5.35 X 10^7 coulomb

=========================Final answer.

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