Chemistry, asked by Anonymous, 11 months ago

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Answered by abdbcdcde
1

Answer:

0.25 NA

Explanation:

molar mass of d2o is 20gms

no. of electron = 10

no. of neutron = 20-10 = 10

Thus 1 molecule has 10 neutrons

No. Of molecules in 5g of d2o = 5/20 x NA

= 0.025 NA

=> no. Of neutrons = 10 x 0.025 Na

= 0.25 NA

Answered by dannydear
0

Answer:

o. 25NA

Explanation:

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