1
Question
How many electrons are present in 9g of water
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Solution
No of electrons in a molecule of H2O = 2x1 + 8 = 10
No . of electrons in one mole = 10 x 6.023 x 10^-23 = 6.023 x 10^-22
So total no of electrons = no. of moles x 6.023 x 10^-22
No . of electrons in one mole = 10 x 6.023 x 10^-23 = 6.023 x 10^-22
So total no of electrons = no. of moles x 6.023 x 10^-22
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