A student dissolves $20.g$ of sucrose $(C_{12}{H}_{22}{O}_{11})$ in $100.mL$ of a solvent with a density of $1\mathrm{.}18\frac{g}{m}L.$ The student notices that the volume of the solvent does not change when the sucrose dissolves in it$.$

Calculate the molarity and molality of the student's solution. Be sure each of your answer entries has the correct number of significant digits.

molarity $=$

molality $=$