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Calculate the number of electrons present in 36 g water.

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Calculate the number of electrons present in 36 g water.

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Gram molecular weight of H2O = 18 g
According to molecular weight concept
18 g H2O = 6.023 × 1023 molecules of water

1 molecule of water contains = 10 electrons
12.046 × 1023 molecules will contain
=10 × 12.046 × 1023 electrons
= 12.046 × 1024

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