The sample which is having 50 g of impure KClO3 (having the solubility 7.1g/100g H2O) is contaminated with the 10 % of KCl (25.5g/100g H2O at 20C). Determine the minimum quantity of 20C water required to dissolve all the KCl from the sample. Discuss how much KClO3 will be left after this treatment?