Question

How atoms of Hydrogen are there in 18 g of water?

Answer 1

HEYA

here is the answer to your question
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given mass=18g

molar mass of water=18g

no of moles=given mass/molar mass
=18/18
=1mol
now
no of hydrogen atoms=no of moles*Na*atomicity of hydrogen
=1 * 6.022*10^23 * 2
=12.04*10^23 atoms
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hope this helps

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