what volume of water will contain 2.4 Na of neutrons ? ( where Na = Avogadro number = 6.022 × 10²³ )
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Correct option is
B
10N
a
The density of water is 18 g/mol.
18 mL of water corresponds to 18 g or 1 mole. They contain N
a
(Avogadro's number) of molecules.
Each water molecule contains total 2+8=10 electrons (2 from 2 H atoms and 8 from one O atom).
Hence, 18 mL of water will contain 10 N
a
electrons.
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