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Na2SO4 is water soluble while BaSO4 is not. Why ?

Na2SO4 is soluble in water but BaSO4 is not becuase the size of Ba and SO4 ions is very large which leads to higher lattice enthalpy than that of hydration enthalpy. Therefore, BaSO4 is insoluble in water.
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Sodium sulphate is soluble in water whereas barium sulphate is sparingly soluble because  a. the hydration energy of sodium sulphate is more than its lattice energy  b. the lattice energy of barium sulphate is more than its hydration energy  c. the lattice energy has no role to play in solubility  d. the hydration energy of sodium sulphate is less than its lattice energy 
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Sodium sulphate is soluble in water whereas barium sulphate is sparingly soluble because a. the hydration energy of sodium sulphate is more than its lattice energy b. the lattice energy of barium sulphate is more than its hydration energy c. the lattice energy has no role to play in solubility d. the hydration energy of sodium sulphate is less than its
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because baso4 ions is very large 
 
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Sodium sulphate is soluble in water whereas barium sulphate is sparingly soluble because  a. the hydration energy of sodium sulphate is more than its lattice energy  b. the lattice energy of barium sulphate is more than its hydration energy  c. the lattice energy has no role to play in solubility  d. the hydration energy of sodium sulphate is less than its lattice energy
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