Question

Calculate the number of electrons, protons and neutrons in 5 molecules of H2O

Answer 1

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number of electrons :-

The water molecule has a total of 10 protons and 10 electrons (8 from the oxygen atom and 1 from each of the two hydrogen atoms)

number of protons :-

The water molecule has a total of 10 protons and 10 electrons (8 from the oxygen atom and 1 from each of the two hydrogen atoms). Since it has the same number of protons and electrons, the water molecule is neutral.

No. of neutrons in 5 mole =

$6.023 * {10}^{23} × 8 × 5 = 40 × 6.023* {10}^{23} = 240.92 \times {10}^{23} = 2.4092 \times {10}^{25}$