An urea solution is $34\mathrm{.}0\%N{H}_{2}CON{H}_2$ by mass. It is simultaneously $6\mathrm{.}19M$ at $20C.$

$($a$)$ Compute the density of this solution.

Density $=,gc{m}^{-3}$

$($b$)$ What volume of this solution should be used in preparing $1\mathrm{.}60L$ of a $0\mathrm{.}520M$ urea solution?

Volume $=,mL$