Question

calculate total number of electrons protons and neutrons in 10 molecules of water​

Answer 1

Answer:

1 molecule of water has 2 hydrogens and 1 oxygen atom.

Thus the total number of electrons present in 1 molecule of water is 10. ( 1+1+8)

Since an atomic number of hydrogen is 1 and that of oxygen is 8.

The molecular weight of water is 18. Thus 1.8 g water will have 0.1N

A

molecules of water and 10×0.1N

A

=N

A

electrons.

Answer 2

ANSWER

1 molecule of water has 2 hydrogens and 1 oxygen atom.

Thus the total number of electrons present in 1 molecule of water is 10. ( 1+1+8)

Since an atomic number of hydrogen is 1 and that of oxygen is 8.

The molecular weight of water is 18. Thus 1.8 g water will have 0.1N

A

molecules of water and 10×0.1N

A

=N

A

electrons.

Hence, the correct option is A

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