Question

Total number of neutrons in 540 grams of water ......

Answer 1

Answer:

H- atom has 1 proton, O-atom has 8 protons, thus in a H2O molecule there r 1×2+8=10 protons.

Mol. Wt. Of H2O is 1×2+16=18

Now 18gm of H2O 1 mole

Hence 36gm of H2O is 2 mole

1 mole includes 6.023×10^23 molecules

Thus

in 36gm H2O

=2gm.mol or 2 mole H2O

=2 × 6.023×10^23 H2O molecules

= 2 × 6.023×10^23 × 10 protons

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Explanation: