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What is the fraction of the mass of wate...

What is the fraction of the mass of water due to neutrons?

Text Solution

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Molecular mass of `H_(2)O=2xx1+16=18u`
Total number of neutorns = 2`xx`0+8=8
Total number of neutrons = 2`xx`0+8=8
Mass of neutorn S = 8u
Fraction of mass due to neurtons =`("Mass of neutrons")/("Molecular mass of" H_(2)O)=(8u)/(18u)`
`=(8)/(18)=(4)/(9)`or 4:9
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