An aqueous KNO$3$ solution is made using $79\mathrm{.}9$ g of KNO$3$ diluted to a total solution volume of $1\mathrm{.}89$ L$.($Assume a density of $1\mathrm{.}05$ g$/$mL for the solution.$)$

$1.$Calculate the molarity of the solution

$2.$Calculate the molality of the solution.

$3.$Calculate the mass percent of the solution.