1 Chemical Equilibrium
The solubility of K2SO4 in water is 16 g per 100 mL at 50oC. The least weight of water that will dissolve 4 g of this substance at the same temperature is
1) 25 g
2) 10 g
3) 50 g
4) 75 g
SOLUTION
Solubility is the amount of solute in gram per 100g solvent. 16g K2?SO4 is present in =100g water 4gK2??SO4? will be present in 100×4 / 16=25g
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