Question

Answer this numerical

Answer 1

One D2O molecule has 2 neutrons.

We need the number of D2O molecules in 5g.

Molar mass of D2O is 20g.

So, 5g means 0.25 mol of D2O.

Multiplying by avogrado’s number,

no. of molecules is 1.505×10^23.

So total number of neutrons = no. Of molecules ×2 = 3.01×10^23