Question

How much positive and negative charge is there in a 200g cup of water​

Answer 1

Answer:

Generally,the mass of water contained in cup is 250g.The molecular mass of water is 18g per mol.

Number of molecules present in a cup of water,n=6.022×10^23×250/18 =8.36×10^24

Each molecule of water(H2O) contain 2+8=10 electrons as well as proton.

Total no. of electrons or protons present in a cup of water,n’=n×10=8.36×10^25

Total negative or positive charge =

q=n’e

=8.36×10^25×1.6×10^-19 C=1.33×10^7 C.

Explanation:

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Answer 2

Answer:

One molecule of water has 2 hydrogen atoms (2 protons) and one oxygen atom (8 protons). So 250 g water will have 10 x 8.36 x 1024 = 8.36 x 1025 protons. So one cup of water has 13.3 mega coulomb positive and negative charge, so that the overall charge is zero...

Explanation:

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