Pick an appropriate solvent from the table below to dissolve each substance. Sta

Question

Pick an appropriate solvent from the table below to dissolve each substance. State the kind of intermolecular forces that would occur between the solute and solvent in each case. Pick appropriate solvent (s)to dissolve barium nitrate (ionic). Check all that apply. Water (H_2 O) Ethanol (CH_3 CH_2 OH) Toluene (C_7 H_8) Hexane (C_6 H_14) Carbon tetrachloride (CCl_4) Methanol (CH_3 OH) State the kind of intermolecular forces that would occur between the solute and solvent in barium nitrate (ionic). Check all that apply. dispersion ion-dipole hydrogen bonding dipole-dipole

Explanation / Answer

Ba(NO3)2 is soluble in water (H2O) only.

The type of intermolecular attractions that would occur between Ba(NO3)2 and H2O is ion - dipole inetractions.

To get dissolved an ionic compound, the solvent - solute interactions must overcome the lattice energy of barium nitrate. So, water solvent can overcome lattice enrgy by hydration of ions (i.e hydration energy)

Alcohols though polar in nature they can not overcome the loaatice enrgy of barium nitrate by solvent solute interactions. Hence alcohol cannot dissolve barium nitrate.

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