E5E.5(b) Describe what happens when (i) (NH4)2SO4 is added to a saturated solution of NH4Cl in water in the presence of excess NH4Cl, (ii) water is added to a mixture of 25 g of NH4Cl and 75 g of (NH4)2SO4.
Extracted text: O11 H,0 0.2 0.8 P= 1 0.4, 0.6 P=/2 0.6 P=2 0.4 P= 3 0.8 0.2 NH,CI 2 O (NH,),SO, 0.2 0.4 0.6 0.8 1 Figure 5.8 The phase diagram for the ternary system NH,CI/ (NH,),SO,/H,0 at 25°C. ESE.5(a) Referring to Fig. 5.8, deduce the molar solubility of (i) NH,CI, (ii) (NH,),SO, in water at 25°C. ESE.5(b) Describe what happens when (i) (NH,),SO, is added to a saturated solution of NH,Cl in water in the presence of excess NH,CI, (ii) water is added to a mixture of 25 g of NH,Cl and 75 g of (NH,),SO̟.