What is the total negative charge, in coulombs, of all the electrons in a small

Question

What is the total negative charge, in coulombs, of all the electrons in a small 1.05g sphere of carbon? One mole of C is 12.0g , and each atom contains 6 protons and 6 electrons. Suppose you could take out all the electrons and hold them in one hand, while in the other hand you hold what is left of the original sphere. If you hold your hands 1.55m apart at arms length, what force will each of them feel? What is the total negative charge, in coulombs, of all the electrons in a small 1.05g sphere of carbon? One mole of C is 12.0g , and each atom contains 6 protons and 6 electrons. Suppose you could take out all the electrons and hold them in one hand, while in the other hand you hold what is left of the original sphere. If you hold your hands 1.55m apart at arms length, what force will each of them feel?

Explanation / Answer

Number of moles of C = 1.05 g x 1 mole/12.01 g = 0.0874 moles


# of C atoms = 0.0874 moles x (6.022 x 10^23 C atoms)/1 mole of C

# of C atoms = 5.26 x 10^22 atoms


1 electron = -1.6 x 10^-19 C

6 electrons x (-1.6 x 10^-19 C)/1 electron = -9.6 x 10^-19 C


Total negative charge = (5.26 x 10^22 atoms) (-9.6 x 10^-19 C)

Total negative charge = -50,496 C

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