One gram of an organic liquid `X (` molecular mass 78) liberates `160J` of heat on solidification. `DeltaH_(fusion)(X)` is `:`

One gram mole, one gram molecule, and one gram molecular mass have the........meaning.

What is gram molecular mass ? Give one example.

One moles of anhydrous AB dissolves in water and liberates 21.0 J mol^(-1) of heat. The valueof DeltaH^(Theta) (hydration) of AB is -29.4 J mol^(-1) . The heat of dissolution of hydrated salt AB.2H_(2)O(s) is

One moles of anhydrous AB dissolves in water and liberates 21.0 J mol^(-1) of heat. The valueof DeltaH^(Theta) (hydration) of AB is -29.4 J mol^(-1) . The heat of dissolution of hydrated salt AB.2H_(2)O(s) is

When a metal X is treated with cold watr, it gives a base Y with molecular formula XOH (molecular mass 40) and liberates a gas Z which easily catches fire. Identify X, Y and Z

How many molecules will be present in one gram molecular mass of hydrogen gas ?

How many molecules will be present in one gram molecular mass of hydrogen gas ?

How many molecules are present in one gram molecular mass of a substance ?

The lattice enthalpy of an ionic compound MX is DeltaH_(L) and the total enthalpy of hydration of M^(+) and X^(-) ions is DeltaH_(hyd) . Show that heat of solution of this ionic compound DeltaH_(sol)=DeltaH_(L)+DeltaH_("hyd") .