Question

18ml of water contain how many numbers of electron

Answer 1

18 ml of water contains 10 electrons

Answer 2

Hey Prasad...!!!

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First of all Happy Ganesh Chaturthi..!!! ♥♥♥

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Pls find the answer below:

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♦ Since density of water is 1 gm/cc, 18 ml corresponds to mass m =18 g of water.

♦ so, no. of moles corresponding to 18 g = m/A = 1, where  A is molecular weight  (water =18 g)

♦ Now, 1 mole of water contains 6.022×10^²³ molecules of H2O and  one molecule of H2O contains 10 electrons (i.e. There are 8 electrons in oxygen and 1 from each hydrogen so a water molecule has 10 electrons).

♦ Hence, total no. of electrons present in 18 ml of water =10 × 6.022×10^²³

= 6.022×10^24

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Hope it helps..!!! ☺☺☺