(Solved): 8) A50.0g sample contains KClO3 and KCl. The KClO3 has a solubility =7.1g per 100g of H ...

8) $\mathrm{A}50.0\mathrm{g}$ sample contains ${\mathrm{KClO}}_3$ and $\mathrm{KCl}$. The ${\mathrm{KClO}}_3$ has a solubility $=7.1\mathrm{g}$ per $100\mathrm{g}$ of ${\mathrm{H}}_2\mathrm{O}$ at $20.0^{?}\mathrm{C}$. The $\mathrm{KCl}$ has a solubility $=25.5$ g per $100\mathrm{g}$ of ${\mathrm{H}}_2\mathrm{O}$ at $20.0^{?}\mathrm{C}$. If the sample is $10\%\mathrm{KC}$; a) Calculate the minimum quantity of water at $20^{?}\mathrm{C}$ that is needed to dissolve all the $\mathrm{KCl}$. b) How much ${\mathrm{KClO}}_3$ will remain as a solid if $50\mathrm{g}$ impure sample is placed in the quantity of water you calculated in part a?