(d)
Calculate the number of neutrons in 18 mL of water. (Density of water -1 gm/ml)
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Answer:
The answer is 4.8 10^24 neutrons.
Explanation:
18 ml of water has weight = 18 g weight
No. Of . moles = Mass/molecular mass.
The molar mass of H2O is 18. So we have 1 mole of H2O.
1 mole has Avogadro's number of atoms that is 6.023×10^23 atoms.
No. of neutrons in H = o (zero)
No. of neutrons of oxygen, O in H2O = 8
So no. of neutrons required=8×6.023×10^23
=4.8 10^24 neutrons.
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