The number of neuons in `5g` of `D_2 O(D` is `21H`) are:

The number of neutrons in 5 "g of" D_(2)" O(D is " ._(1)^(2)H)

The total number of neutrons present in 10g D_(2)O (D "is" _(1).^(2)H) are .

The total number of electrons in 2.0 g of D_(2)O to that in 1.8 g of H_(2)O

Total number of neutrons present in 4g of heavy water (D_(2)O) is : (Where N_(A) represetns Avogadro's number)

Give the number of unpaired electrons in t_(2g) set of d-orbitals in [Co(H_(2)O)_(3)F_(3)] complex .

The number of d-electrons in [Cr(H_(2)O)_(6)]^(3+) [atomic number of Cr =24] is :

The dipole moment of H_(2)O_(2) is 2.1 D. this indicates that the structure of H_(2)O_(2) is :

For the reaction, 4NH_(3(g))+5O_(2(g))rarr 4NO_((g))+6H_(2)O_((g)) , the rate of reaction in terms of disappearance of NH_(3) is -(d[NH_(3)])/(dt) , then write the rate expression in terms of concentration of O_(2), NO and H_(2)O .

Equal volumes of C_(2)H_(2) and H_(2) are combusted under identical conditons. The ratio of evolved in i.e. for C_(2)H_(2) and H_(2) is: H_(2)(g) + 1/2O_(2) (g) to H_(2)O(g), DeltaH=-241.8 kJ C_(2)H_(2)(g) + 21/2O_(2)(g) to 2CO_(2)(g) + H_(2)O(g), DeltaH = -1300 kJ

Temperature of maximum density in H_(2)O and D_(2)O respectivelt are